$ query “AS18881” --type=asn → 1 result(s)

AS18881 — TELEFONICA-BRASIL

TELEFÔNICA BRASIL S.A

AS18881 is a residential access provider run by TELEFÔNICA BRASIL S.A, established in Brazil in 2000. The network announces an impressive 4.6 million IPv4 addresses, including a /13. Supports IPv6.

Basic Information

Country
🇧🇷 Brazil
Category
Internet Service Provider
Network Role
Access Provider
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
October 23, 2000
Last Changed
March 04, 2026
Last Seen
March 05, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
969 / 31
IPv6 Prefixes (raw / aggregated)
73 / 31
IPv4 Addresses
4 616 192
Largest IPv4 Prefix
/13 (524 288 addresses)
Largest IPv6 Prefix
/31
Geolocated Countries
🇦🇺 AU (22 IPs), 🇧🇷 BR (3 666 IPs)
Prefix Changed
March 05, 2026

Reputation

Reputation
Good — 81 flagged IPs out of 4 616 192 total (0.00%)
Open Proxies
1 known open proxies in this network

Connectivity Summary

Upstream Providers
2 upstream autonomous systems providing transit
Peers
163 autonomous systems exchanging traffic without transit fees
Downstream Customers
1 downstream autonomous systems buying transit
Degree
166 unique BGP neighbors (providers + customers + peers)
Reach
1 — customer cone size measuring network influence
Degree Rank
#842
Reach Rank
#8 505

Upstream Providers (2)

Prefix Lists

IPv4 Prefixes (969 total)

  • 179.176.0.0/13 (524 288 addresses)
  • 177.16.0.0/14 (262 144 addresses)
  • 177.40.0.0/14 (262 144 addresses)
  • 177.96.0.0/14 (262 144 addresses)
  • 177.132.0.0/14 (262 144 addresses)
  • 177.156.0.0/14 (262 144 addresses)
  • 177.204.0.0/14 (262 144 addresses)
  • 179.184.0.0/14 (262 144 addresses)
  • 186.212.0.0/14 (262 144 addresses)
  • 187.112.0.0/14 (262 144 addresses)
  • 191.32.0.0/14 (262 144 addresses)
  • 191.248.0.0/14 (262 144 addresses)
  • 187.58.0.0/15 (131 072 addresses)
  • 189.26.0.0/15 (131 072 addresses)
  • 189.58.0.0/15 (131 072 addresses)
  • 189.114.0.0/15 (131 072 addresses)
  • 191.30.0.0/15 (131 072 addresses)
  • 179.83.0.0/16 (65 536 addresses)
  • 179.95.0.0/16 (65 536 addresses)
  • 200.175.0.0/16 (65 536 addresses)
  • 201.22.0.0/16 (65 536 addresses)
  • 201.47.0.0/16 (65 536 addresses)
  • 201.86.0.0/16 (65 536 addresses)
  • 179.131.128.0/17 (32 768 addresses)
  • 179.162.0.0/17 (32 768 addresses)
  • 200.146.0.0/17 (32 768 addresses)
  • 177.145.0.0/18 (16 384 addresses)
  • 179.162.128.0/18 (16 384 addresses)
  • 200.139.64.0/18 (16 384 addresses)
  • 179.162.192.0/19 (8 192 addresses)
  • 179.162.240.0/20 (4 096 addresses)

IPv6 Prefixes (73 total)

  • 2804:7f0::/31
  • 2804:7f4::/31
  • 2804:7f2::/32
  • 2804:7f7::/32
  • 2804:1b1::/33
  • 2804:7f3::/33
  • 2804:7f6:8000::/33
  • 2804:1b1:8000::/34
  • 2804:1b2:8000::/34
  • 2804:1b3:8000::/34
  • 2804:7f6::/34
  • 2804:1b0::/35
  • 2804:1b0:e000::/35
  • 2804:1b1:c000::/35
  • 2804:1b2::/35
  • 2804:1b2:6000::/35
  • 2804:1b3:6000::/35
  • 2804:1b3:c000::/35
  • 2804:7f3:8000::/35
  • 2804:7f3:e000::/35
  • 2804:1b0:8000::/36
  • 2804:1b2:2000::/36
  • 2804:1b2:4000::/36
  • 2804:1b2:f000::/36
  • 2804:1b3:1000::/36
  • 2804:1b3:4000::/36
  • 2804:1b1:e000::/37
  • 2804:1b1:f800::/37
  • 2804:1b2:d000::/38
  • 2804:1b3:3000::/39
  • 2804:1b2:c100::/40