AS53237
TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 4 internet exchanges: IX.br (PTT.br) Brasília: ATM/MPLA, IX.br (PTT.br) São Paulo: ATM/MPLA, IX.br (PTT.br) Porto Alegre: ATM/MPLA, IX.br (PTT.br) Belém: ATM/MPLA
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 177.14.128.0/17 | 32.8K |
0.0%
|
TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS | BR | Bahia | Salvador |
| 177.15.0.0/17 | 32.8K |
4.1%
|
TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS | BR | Rio Grande do Sul | Canoas |
| 177.14.64.0/18 | 16.4K |
0.1%
|
TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS | BR | São Paulo | Sorocaba |
| 177.15.128.0/18 | 16.4K |
0.1%
|
TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS | BR | Federal District | Brasília |
| 177.88.0.0/19 | 8.2K |
0.0%
|
TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS | BR | — | — |
| 177.88.96.0/19 | 8.2K |
0.0%
|
TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS | BR | — | — |
| 177.88.160.0/19 | 8.2K |
0.0%
|
TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS | BR | — | — |
| 177.15.248.0/21 | 2.0K |
0.1%
|
TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS | BR | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS53237 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 177.88.96.0/19 | 505,325 | 2026-11-07 22:11:43 |
| 177.88.160.0/19 | 235,872 | 2026-11-08 07:38:21 |
| 177.14.176.0/20 | 145,351 | 2026-11-08 09:23:48 |
| 177.88.0.0/19 | 138,504 | 2026-11-08 09:23:57 |
| 177.15.0.0/19 | 128,386 | 2026-11-08 07:36:05 |
| 177.15.32.0/19 | 125,299 | 2026-11-08 07:36:05 |
| 177.14.64.0/19 | 108,485 | 2026-11-08 07:37:59 |
| 177.14.128.0/19 | 107,323 | 2026-11-08 07:36:06 |
| 177.14.160.0/20 | 98,427 | 2026-11-08 09:23:48 |
| 177.14.96.0/20 | 97,714 | 2026-11-08 09:23:48 |
| 177.15.128.0/20 | 96,246 | 2026-11-08 09:23:48 |
| 177.14.96.0/19 | 92,015 | 2026-11-08 07:36:05 |
| 177.15.96.0/19 | 90,711 | 2026-11-08 07:37:14 |
| 177.15.160.0/19 | 89,363 | 2026-11-08 07:35:56 |
| 177.14.192.0/19 | 88,511 | 2026-11-08 07:37:59 |
| 177.15.128.0/19 | 80,870 | 2026-11-08 07:36:16 |
| 177.15.64.0/19 | 80,607 | 2026-11-08 07:36:16 |
| 177.14.160.0/19 | 78,995 | 2026-11-08 07:38:34 |
| 177.14.224.0/19 | 72,723 | 2026-11-08 07:37:59 |
| 177.15.248.0/21 | 72,138 | 2026-11-08 07:35:56 |
| 177.88.112.0/20 | 55,174 | 2026-11-07 22:11:43 |
| 177.15.0.0/20 | 41,775 | 2026-11-08 09:17:40 |
| 177.88.160.0/20 | 37,642 | 2026-11-08 09:17:40 |
| 177.14.64.0/20 | 34,924 | 2026-11-08 09:17:40 |
| 177.14.80.0/20 | 34,061 | 2026-11-08 09:17:38 |
| 177.14.208.0/20 | 33,428 | 2026-11-08 09:17:40 |
| 177.15.16.0/20 | 24,425 | 2026-11-08 09:17:40 |
| 177.88.0.0/20 | 23,773 | 2026-11-08 09:17:40 |
| 177.15.112.0/20 | 22,749 | 2026-11-08 09:17:38 |
| 177.15.48.0/20 | 22,087 | 2026-11-08 09:17:38 |
| 177.14.192.0/20 | 21,723 | 2026-11-08 09:17:40 |
| 177.15.96.0/20 | 20,960 | 2026-11-08 09:17:40 |
| 177.14.128.0/20 | 20,190 | 2026-11-08 09:17:38 |
| 177.14.240.0/20 | 20,147 | 2026-11-08 09:17:39 |
| 177.15.176.0/20 | 19,807 | 2026-11-08 09:17:40 |
| 177.15.80.0/20 | 19,352 | 2026-11-08 09:17:38 |
| 177.14.224.0/20 | 19,170 | 2026-11-08 09:17:40 |
| 177.15.64.0/20 | 19,076 | 2026-11-08 09:17:38 |
Frequently Asked Questions
What is AS53237?
AS53237 is an Autonomous System Number assigned to TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS53237 announce?
AS53237 announces 124.9K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in Brazil.
Who operates AS53237?
AS53237 is operated by TELECOMUNICACOES BRASILEIRAS S. A. - TELEBRAS. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.
What country is AS53237 registered in?
AS53237 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
