AT&T COMMUNICATIONS SERVICES INTERNATIONAL INC.

AT&T Services, Inc.
Data as of 2026-09-20
GLEIF verified
Complete entity footprint
5 linked clusters · 5,025 netblocks · 122,158,672 IPv4 addresses · 608 IPv6 prefixes
This organisation's clusters combined by evidence — shared GLEIF corporate family and shared operating domain attdns.com — not name similarity, so genuinely different organisations that share a name are excluded.
View the full entity page →
LEI
549300OKSEZNCA9WAS16
Registered name
AT&T COMMUNICATIONS SERVICES INTERNATIONAL INC.
Jurisdiction
US-DE
Ultimate parent
No parent on file in GLEIF
This organisation
Netblocks395 · 14,077,480 IPv4 addresses
IPv6 3 prefixes (largest 2a01:e284::/32)
Also registered under this name 410 netblocks across 3 separate records
Record ID240772152
RegistryBGP
Owner jurisdictionUS-DE
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 549300OKSEZNCA9WAS16
Shared handles clustered on 24 shared RIR contact/maintainer handles
Registry names 4 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (395)

⬇ export CSV
CIDR Org name Registry Status Confidence
12.0.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.0.136.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.0.224.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.1.136.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.2.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.11.80.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.11.192.0/19 AT&T Services, Inc. ARIN ALLOCATION ● high
12.11.224.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.11.240.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.11.254.0/23 AT&T Services, Inc. ARIN ALLOCATION ● high
12.14.152.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.15.184.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.17.156.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.17.252.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.19.176.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.19.232.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.22.40.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.102.192.0/18 AT&T Services, Inc. ARIN ALLOCATION ● high
12.104.24.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.105.13.0/24 AT&T Services, Inc. ARIN ALLOCATION ● high
12.105.40.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.105.56.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.105.132.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.106.160.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.106.168.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.107.16.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.108.88.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.110.184.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.110.206.0/23 AT&T Services, Inc. ARIN ALLOCATION ● high
12.111.88.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.111.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.111.120.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.124.154.0 – 12.124.255.255 AT&T Services, Inc. ARIN ALLOCATION ● high
12.128.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.129.152.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.129.172.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.130.132.0/29 AT&T Services, Inc. ARIN ASSIGNMENT ● high
12.130.132.32/27 AT&T Services, Inc. ARIN ASSIGNMENT ● high
12.132.224.0/19 AT&T Services, Inc. ARIN ALLOCATION ● high
12.139.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.144.88.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.144.208.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.145.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.145.200.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.145.248.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.146.48.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.146.208.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.147.24.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.147.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.147.168.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.147.176.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.149.24.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.149.196.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.150.8.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.150.16.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.150.168.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.150.216.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.151.88.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.151.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.151.184.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.151.232.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.152.24.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.152.48.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.152.88.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.152.184.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.153.136.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.153.152.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.153.176.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.153.208.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.153.232.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.153.241.0/24 AT&T Services, Inc. BGP ANNOUNCED ● high
12.154.40.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.154.152.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.155.8.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.155.56.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.156.16.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.157.0.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.157.16.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.157.24.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.158.72.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.158.84.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.158.164.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.159.16.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.159.112.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.159.152.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.160.36.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.160.80.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.161.56.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.161.88.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.162.64.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.163.72.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.163.100.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.163.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.163.128.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.163.208.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.163.240.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.164.24.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.164.80.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.164.112.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.164.176.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.165.16.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.165.40.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.165.216.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.165.240.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.166.48.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.166.168.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.166.176.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.167.48.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.167.100.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.167.120.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.167.208.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.168.8.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.168.40.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.168.48.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.168.136.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.168.152.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.168.200.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.168.240.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.169.8.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.169.16.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.169.72.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.169.80.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.169.136.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.169.240.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.170.8.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.170.56.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.170.72.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.170.168.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.170.176.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.171.80.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.171.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.171.136.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.171.144.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.171.168.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.171.196.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.171.200.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.172.8.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.172.36.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.172.40.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.172.152.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.173.16.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.173.40.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.173.80.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.173.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.173.112.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.173.240.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.174.8.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.174.16.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.174.72.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.174.248.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.175.8.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.175.56.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.175.80.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.175.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.175.144.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.175.176.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.176.8.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.176.36.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.176.80.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.176.112.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.176.136.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.176.144.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.176.176.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.176.208.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.176.240.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.177.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.177.144.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.177.168.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.177.176.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.178.40.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.178.48.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.178.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.178.120.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.178.208.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.178.210.0/24 AT&T Services, Inc. ARIN ASSIGNMENT ● high
12.178.228.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.178.232.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.179.40.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.179.72.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.179.100.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.179.104.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.179.176.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.179.196.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.179.200.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.179.212.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.179.232.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.179.240.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.180.112.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.180.144.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.180.176.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.180.200.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.180.208.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.180.232.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.181.8.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.181.36.0/22 AT&T Services, Inc. ARIN ALLOCATION ● high
12.181.40.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.181.136.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.181.144.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.181.168.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.181.176.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.182.152.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.183.0.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.183.72.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.189.64.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.189.240.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.191.208.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.192.136.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.195.192.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.197.232.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.199.16.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.199.32.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.199.80.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.202.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.203.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.205.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.206.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.208.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.210.144.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.210.160.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.210.168.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.210.176.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.210.208.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.210.216.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.210.224.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.210.232.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.210.240.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.212.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.215.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.216.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.219.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.220.8.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.220.24.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.220.144.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.221.216.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.221.224.0/20 AT&T Services, Inc. ARIN ALLOCATION ● high
12.221.240.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.222.8.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.223.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.224.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.225.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.226.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.227.0.0/16 AT&T Services, Inc. ARIN ALLOCATION ● high
12.228.168.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.229.136.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.229.152.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.229.176.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
12.229.200.0/21 AT&T Services, Inc. ARIN ALLOCATION ● high
67.98.173.0/24 AT&T Services, Inc. BGP ANNOUNCED ● high
72.157.240.0/21 AT&T Services, Inc. BGP ANNOUNCED ● high
72.157.248.0/21 AT&T Services, Inc. BGP ANNOUNCED ● high
130.1.0.0 – 130.10.255.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● high
135.40.0.0 – 135.52.255.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● high
135.65.0.0 – 135.73.255.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● high
135.75.0.0 – 135.83.255.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● high
135.94.0.0 – 135.102.255.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● high
135.143.0.0 – 135.147.255.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● high
135.150.0.0 – 135.154.255.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● high
135.160.0.0 – 135.168.255.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● high
135.172.0.0 – 135.179.255.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● high
135.186.0.0 – 135.195.255.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● high
135.209.64.0/19 AT&T Services, Inc. BGP ANNOUNCED ● high
135.209.96.0/19 AT&T Services, Inc. BGP ANNOUNCED ● high
135.209.146.0/23 AT&T Services, Inc. BGP ANNOUNCED ● high
135.209.148.0/22 AT&T Services, Inc. BGP ANNOUNCED ● high
135.209.152.0/22 AT&T Services, Inc. BGP ANNOUNCED ● high
135.209.156.0/24 AT&T Services, Inc. BGP ANNOUNCED ● high
135.209.158.0/23 AT&T Services, Inc. BGP ANNOUNCED ● high
135.209.160.0/21 AT&T Services, Inc. BGP ANNOUNCED ● high
135.209.168.0/24 AT&T Services, Inc. BGP ANNOUNCED ● high
135.209.208.0/24 AT&T Services, Inc. BGP ANNOUNCED ● high
135.209.208.0/20 AT&T Services, Inc. BGP ANNOUNCED ● high
135.209.209.0/24 AT&T Services, Inc. BGP ANNOUNCED ● high
135.209.224.0/20 AT&T Services, Inc. BGP ANNOUNCED ● high
139.76.8.0/21 AT&T Services, Inc. BGP ANNOUNCED ● high
139.76.53.0/24 AT&T Services, Inc. BGP ANNOUNCED ● high
139.76.64.0/18 AT&T Services, Inc. BGP ANNOUNCED ● high
139.76.224.0/19 AT&T Services, Inc. BGP ANNOUNCED ● high
144.160.0.0/15 AT&T Services, Inc. BGP ANNOUNCED ● high
170.35.208.0/20 AT&T Services, Inc. BGP ANNOUNCED ● high
170.35.224.0/20 AT&T Services, Inc. BGP ANNOUNCED ● high
192.150.169.0/24 AT&T Services, Inc. BGP ANNOUNCED ● high
198.180.219.0/24 AT&T Services, Inc. BGP ANNOUNCED ● high
204.107.19.0/24 AT&T Services, Inc. BGP ANNOUNCED ● high
207.140.0.0/24 AT&T Services, Inc. ARIN ALLOCATION ● high
207.242.0.0/23 AT&T Services, Inc. ARIN ALLOCATION ● high
129.245.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
130.48.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
132.201.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
134.85.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.16.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.21.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.25.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.28.0.0/15 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.31.0.0 – 135.34.255.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.37.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.38.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.54.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.57.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.58.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.59.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.61.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.62.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.63.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.89.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.91.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.110.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.113.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.138.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.139.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.158.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.170.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.182.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.184.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.197.0.0 – 135.208.255.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.209.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.210.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.212.0.0/15 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.214.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.215.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.216.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.217.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.218.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
135.219.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
139.76.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
139.125.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
141.204.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.60.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.61.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.148.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.149.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.150.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.151.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.152.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.153.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.154.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.155.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.156.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.157.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.158.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
144.159.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
150.233.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
150.234.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
150.235.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
151.109.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
155.162.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
155.164.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
155.167.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
155.168.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
155.169.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
155.171.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
155.175.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
155.176.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
155.179.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
155.241.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
155.242.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
155.243.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
170.35.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.20.0.0 – 192.20.224.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.20.226.0 – 192.20.238.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.20.240.0/20 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.82.234.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.82.235.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.82.236.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.104.239.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.108.123.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.111.51.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.111.160.0 – 192.111.209.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.147.21.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.147.22.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.147.214.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.150.168.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.150.170.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
192.205.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
198.62.237.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
198.62.238.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
198.133.92.0/24 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
198.133.152.0 – 198.133.154.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
198.186.231.0 – 198.186.233.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
198.240.32.0/19 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
199.176.0.0/14 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
199.186.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
199.191.128.0/17 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
204.107.16.0 – 204.107.25.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
204.126.226.0/23 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
204.159.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
204.194.144.0 – 204.194.167.255 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
205.172.8.0/22 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
205.173.56.0/21 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
205.174.64.0/20 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
206.121.0.0/16 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
206.140.0.0/15 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
209.18.0.0/19 AT&T Services, Inc. ARIN DIRECT ALLOCATION ● low
2a01:e284::/32 AT&T Services, Inc. RIPE ALLOCATED-BY-LIR ● low
2a01:e285::/32 AT&T Services, Inc. RIPE ALLOCATED-BY-LIR ● low
2a0f:9407::/32 AT&T Services RIPE ALLOCATED-BY-LIR ● low

IPv6 ranges (3)

CIDR
2a01:e284::/32
2a01:e285::/32
2a0f:9407::/32

Footprint over time

13 weekly snapshots · JSON
408 +279 netblocks since 2026-07-05
2026-07-05 peak 408 2026-09-20

Domains this organisation publishes

what's this?
attdns.com

Other domains hosted in this network

what's this?
att.net att.com etrade.com uptodate.com mcmaster.com firstnet.com sbc.com unisys.com bcbsm.com att-idns.net attdns.net myfollett.com northwood.edu usatoday.com mfmnow.com pscufs.com gladns.com cennet.com

Corporate group (3 confirmed entities)

Network trust

what's this?
RPKI hygiene: F how networks compare →
17.2% of checked blocks have valid RPKI ROA coverage (70 of 408)
No discrepancies found among checked blocks.

NIC Handles

ABUSE7-ARIN ABUSE7-ARIN AS11712 AS797 ATT-MNT ATTAB-ARIN ATTSE-Z ATTSE-Z ATTW DUMY-RIPE DUMY-RIPE F4-MNT +12 more