Ultranet Telecomunicações Ltda

Data as of 2026-09-27
BGP inherited
This organisation
Netblocks65 · 4,352 IPv4 addresses
IPv6 2 prefixes (largest 2804:12d0::/32)
Registered in Brazil (63) · United States (1)
Also registered under this name 69 netblocks across 2 separate records
Record ID245508938
RegistryBGP
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 2 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (65)

⬇ export CSV
CIDR Org name Registry Status Confidence
187.109.32.0/23 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.33.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.34.0/23 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.34.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.35.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.36.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.36.0/22 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.37.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.38.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.39.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.40.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.40.0/22 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.41.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.42.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.43.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.44.0/23 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.46.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.47.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
207.153.110.0/24 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
2804:12d0::/32 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
2804:12d0::/36 Ultranet Telecomunicações Ltda BGP ANNOUNCED ● high
187.109.33.16/28 UNKNOWN LACNIC reallocated ● medium
187.109.33.32/30 UNKNOWN LACNIC reassigned ● medium
187.109.33.60/30 UNKNOWN LACNIC reallocated ● medium
187.109.33.128/30 UNKNOWN LACNIC reallocated ● medium
187.109.33.136/30 UNKNOWN LACNIC reallocated ● medium
187.109.33.140/30 UNKNOWN LACNIC reallocated ● medium
187.109.33.152/30 UNKNOWN LACNIC reallocated ● medium
187.109.33.156/30 UNKNOWN LACNIC reallocated ● medium
187.109.33.168/30 UNKNOWN LACNIC reallocated ● medium
187.109.33.176/29 UNKNOWN LACNIC reallocated ● medium
187.109.33.184/29 UNKNOWN LACNIC reallocated ● medium
187.109.33.200/30 UNKNOWN LACNIC reallocated ● medium
187.109.33.208/30 UNKNOWN LACNIC reallocated ● medium
187.109.34.32/29 UNKNOWN LACNIC reallocated ● medium
187.109.34.40/29 UNKNOWN LACNIC reallocated ● medium
187.109.34.112/28 UNKNOWN LACNIC reallocated ● medium
187.109.34.160/29 UNKNOWN LACNIC reallocated ● medium
187.109.34.176/28 UNKNOWN LACNIC reallocated ● medium
187.109.34.224/28 UNKNOWN LACNIC reallocated ● medium
187.109.37.12/30 UNKNOWN LACNIC reallocated ● medium
187.109.37.16/29 UNKNOWN LACNIC reallocated ● medium
187.109.37.48/30 UNKNOWN LACNIC reallocated ● medium
187.109.37.144/28 UNKNOWN LACNIC reallocated ● medium
187.109.40.8/29 UNKNOWN LACNIC reallocated ● medium
187.109.40.16/30 UNKNOWN LACNIC reallocated ● medium
187.109.40.20/30 UNKNOWN LACNIC reallocated ● medium
187.109.40.32/28 UNKNOWN LACNIC reallocated ● medium
187.109.40.48/29 UNKNOWN LACNIC reallocated ● medium
187.109.40.56/32 UNKNOWN LACNIC reassigned ● medium
187.109.40.57/32 UNKNOWN LACNIC reassigned ● medium
187.109.40.58/32 UNKNOWN LACNIC reassigned ● medium
187.109.40.59/32 UNKNOWN LACNIC reassigned ● medium
187.109.40.68/30 UNKNOWN LACNIC reallocated ● medium
187.109.40.72/29 UNKNOWN LACNIC reallocated ● medium
187.109.40.80/29 UNKNOWN LACNIC reallocated ● medium
187.109.40.88/29 UNKNOWN LACNIC reallocated ● medium
187.109.40.104/29 UNKNOWN LACNIC reallocated ● medium
187.109.40.112/30 UNKNOWN LACNIC reallocated ● medium
187.109.40.120/29 UNKNOWN LACNIC reallocated ● medium
187.109.40.128/27 UNKNOWN LACNIC reallocated ● medium
187.109.40.160/27 UNKNOWN LACNIC reallocated ● medium
187.109.40.192/29 UNKNOWN LACNIC reallocated ● medium
187.109.40.224/28 UNKNOWN LACNIC reallocated ● medium
187.109.46.244/30 UNKNOWN LACNIC reallocated ● medium

IPv6 ranges (2)

Footprint over time

6 weekly snapshots · JSON
69 +4 netblocks since 2026-07-05
2026-07-05 peak 69 2026-09-27

Network trust

what's this?
RPKI hygiene: A how networks compare →
98.5% of checked blocks have valid RPKI ROA coverage (66 of 67)
No discrepancies found among checked blocks.

NIC Handles

AS20406 AS262706