$ query “AS4230” --type=asn → 1 result(s)

AS4230 · CLARO

CLARO S.A.

AS4230 is run by CLARO S.A. and is a major transit provider, registered in Brazil since 1999. The system announces an impressive 5.7 million IPv4 addresses, including a /13, and supports IPv6. Its primary geographic footprint is in Brazil, with additional presence in Australia.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • Pioneer — Registered before the year 2000

Basic Information

Country
🇧🇷 Brazil
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
November 16, 1999
Last Changed
March 04, 2026
Last Seen
May 12, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
81 / 44
IPv6 Prefixes (raw / aggregated)
6 / 6
IPv4 Addresses
5 679 872
Largest IPv4 Prefix
/13 (524 288 addresses)
Largest IPv6 Prefix
/30
Geolocated Countries
🇧🇷 Brazil (2 893 920 IPs), 🇦🇺 Australia (1 382 912 IPs)
Prefix Changed
April 29, 2026

Reputation

Reputation
Good — 21 flagged IPs out of 5 679 872 total (0.00%)
Open Proxies
1 known open proxies in this network

Connectivity Summary

Upstream Providers
11 upstreams providing transit
Peers
340 networks exchanging traffic without transit
Downstream Customers
367 downstreams buying transit
Unclassified
27 unclassified BGP neighbors
Degree
745 unique BGP neighbors
Reach
7 632 networks in customer cone

Upstream Providers (11)

  • AS174 — COGENT (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS1031 — PEER1-1031
  • AS701 — UUNET (Tier-1 transit)
  • AS6762 — SEABONE-NET (Tier-1 transit)
  • AS6453 — AS6453 (Tier-1 transit)
  • AS64289 — MACARNE
  • AS32097 — WHOLESALE-INTERNET
  • and 1 more

Prefix Lists

IPv4 Prefixes (81 total)

  • 179.136.0.0/13 (524 288 addresses (/13 prefix))
  • 191.56.0.0/13 (524 288 addresses (/13 prefix))
  • 200.248.0.0/13 (524 288 addresses (/13 prefix))
  • 200.208.0.0/14 (262 144 addresses (/14 prefix))
  • 200.244.0.0/14 (262 144 addresses (/14 prefix))
  • 187.28.0.0/15 (131 072 addresses (/15 prefix))
  • 191.38.0.0/15 (131 072 addresses (/15 prefix))
  • 201.38.0.0/15 (131 072 addresses (/15 prefix))
  • 201.30.0.0/15 (131 072 addresses (/15 prefix))
  • 189.2.0.0/15 (131 072 addresses (/15 prefix))
  • 189.16.0.0/15 (131 072 addresses (/15 prefix))
  • 189.22.0.0/15 (131 072 addresses (/15 prefix))
  • 189.42.0.0/15 (131 072 addresses (/15 prefix))
  • 189.52.0.0/15 (131 072 addresses (/15 prefix))
  • 189.86.0.0/15 (131 072 addresses (/15 prefix))
  • 201.56.0.0/15 (131 072 addresses (/15 prefix))
  • 201.44.0.0/15 (131 072 addresses (/15 prefix))
  • 201.64.0.0/15 (131 072 addresses (/15 prefix))
  • 201.72.0.0/15 (131 072 addresses (/15 prefix))
  • 200.242.0.0/15 (131 072 addresses (/15 prefix))
  • 200.166.0.0/15 (131 072 addresses (/15 prefix))
  • 200.172.0.0/15 (131 072 addresses (/15 prefix))
  • 200.230.0.0/15 (131 072 addresses (/15 prefix))
  • 200.178.0.0/15 (131 072 addresses (/15 prefix))
  • 200.182.0.0/15 (131 072 addresses (/15 prefix))
  • 200.190.0.0/15 (131 072 addresses (/15 prefix))
  • 200.212.0.0/15 (131 072 addresses (/15 prefix))
  • 200.174.0.0/16 (65 536 addresses (/16 prefix))
  • 189.88.0.0/16 (65 536 addresses (/16 prefix))
  • 200.214.0.0/16 (65 536 addresses (/16 prefix))
  • 200.227.0.0/16 (65 536 addresses (/16 prefix))
  • 200.228.0.0/16 (65 536 addresses (/16 prefix))
  • 179.68.0.0/16 (65 536 addresses (/16 prefix))
  • 200.241.0.0/16 (65 536 addresses (/16 prefix))
  • 201.90.0.0/16 (65 536 addresses (/16 prefix))
  • 187.30.0.0/16 (65 536 addresses (/16 prefix))
  • 187.43.0.0/16 (65 536 addresses (/16 prefix))
  • 200.192.0.0/18 (16 384 addresses (/18 prefix))
  • 200.139.192.0/18 (16 384 addresses (/18 prefix))
  • 186.249.160.0/20 (4 096 addresses (/20 prefix))
  • 179.237.0.0/20 (4 096 addresses (/20 prefix))
  • 179.237.16.0/21 (2 048 addresses (/21 prefix))
  • 179.237.24.0/23 (512 addresses (/23 prefix))
  • 200.10.159.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (6 total)

  • 2804:1388::/30
  • 2804:a8::/32
  • 2600:1419:19::/48
  • 2600:1419:4c00::/48
  • 2600:1419:5c00::/48
  • 2600:1419:8000::/48