Frontier Communications of America, Inc.
Data as of 2026-07-26
BGP inherited
Complete entity footprint
3 linked clusters ·
12,522 netblocks ·
146,858,564 IPv4 addresses ·
2,089 IPv6 prefixes
This organisation's clusters combined by evidence —
shared operating domain frontiernet.net
— not name similarity, so genuinely different organisations that share a name are excluded.
Cluster stats
| Netblocks | 1,262 · 10,892,288 IPv4 addresses |
| IPv6 | 8 prefixes (largest 2a07:a900::/29) |
| Registered in | United States (1,078) · United Kingdom (37) · Germany (34) · South Africa (28) · Poland (20) · Ukraine (18) |
| All fragments | 1,313 blocks across 2 clusters |
| Cluster ID | 213492338 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 49 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
6 weekly snapshots · JSON
1,299
+128 netblocks since 2026-07-05
2026-07-05
peak 2,011
2026-07-26
IP Ranges (1,262)
showing 50 of 1,262 — see all — ⬇ export CSV (free export limited to 500 rows — subscribe for the full export)| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 45.52.95.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.32.61.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.32.64.0/21 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.32.72.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.32.74.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.40.148.0/22 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.50.4.0/22 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.50.133.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.104.124.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.104.168.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.105.240.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.105.244.0/22 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.106.84.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.108.204.0/23 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.120.194.0/23 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.120.199.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.120.208.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.121.2.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.121.66.0/23 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.121.72.0/22 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.121.76.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.121.79.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.122.12.0/22 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.122.49.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.122.194.0/23 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.122.196.0/22 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.123.26.0/23 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.123.232.0/22 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.124.111.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.124.220.0/23 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 50.127.127.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 64.111.128.0/19 | Frontier Communications of America, Inc. | ARIN | DIRECT ALLOCATION | ● high |
| 64.111.144.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.37.107.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.37.110.0/23 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.73.38.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.73.48.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.73.64.0/21 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.73.72.0/22 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.73.101.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.73.120.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.73.152.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.73.220.0/22 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.73.220.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.73.224.0/22 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 65.73.244.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 66.33.224.0/19 | Frontier Communications of America, Inc. | ARIN | DIRECT ALLOCATION | ● high |
| 66.133.180.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 70.100.16.0/21 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
| 70.100.66.0/24 | Frontier Communications of America, Inc. | BGP | ANNOUNCED | ● high |
IPv6 ranges (8)
Domains hosted in this network
what's this?Customer-delegated space
how is this classified?
Unclassified
1,093 (86.6%)
Customer access pools
206 (16.3%)
Network trust
what's this?
RPKI hygiene: B
how networks compare →
92.5%
of checked blocks have valid RPKI ROA coverage
(1,201 of 1,299)
Wholesale/transit re-announcements (84)
These blocks are registered to Frontier Communications of America, Inc. but cryptographically authorized across 12 different networks — typical for a large wholesale or transit carrier whose address space is substantially re-announced by downstream customers under their own ASNs, not individually noteworthy.
| 209.166.192.0/18 /18 | authorized for AS174 — Cogent Communications, LLC |
| 68.164.40.0/21 /21 | authorized for AS12083 — WideOpenWest Finance LLC |
| 217.118.208.0/21 /21 | authorized for AS12083 — WideOpenWest Finance LLC |
| 217.118.216.0/21 /21 | authorized for AS12083 — WideOpenWest Finance LLC |
| 217.78.32.0/21 /21 | authorized for AS12083 — WideOpenWest Finance LLC |
| 2.56.32.0/22 /22 | authorized for AS1239 — Cogent Communications, LLC |
| 45.83.132.0/22 /22 | authorized for AS1239 — Cogent Communications, LLC |
| 45.83.152.0/22 /22 | authorized for AS1239 — Cogent Communications, LLC |
| 68.167.20.0/22 /22 | authorized for AS12083 — WideOpenWest Finance LLC |
| 96.47.172.0/22 /22 | authorized for AS7029 — Windstream Communications LLC |
| 104.152.88.0/22 /22 | authorized for AS7029 — Windstream Communications LLC |
| 64.72.200.0/22 /22 | authorized for AS7029 — Windstream Communications LLC |
| 66.93.156.0/22 /22 | authorized for AS834 — IPXO LLC |
| 68.167.16.0/22 /22 | authorized for AS12083 — WideOpenWest Finance LLC |
| 72.244.92.0/22 /22 | authorized for AS12083 — WideOpenWest Finance LLC |
+69 more — see the REST API
NIC Handles
ABUSE223-ARIN
ABUSE223-ARIN
AS13347
AS209854
AS26127
AS32587
AS3593
AS46261
AS5650
AS7011
AS7029
AS9009
+37 more