$ query “AS28573” --type=asn → 1 result(s)

AS28573 · CLARO-NXT-TELECOMUNICACOES

Claro NXT Telecomunicacoes Ltda

AS28573 is operated by Claro NXT Telecomunicacoes Ltda and serves as a stub network, registered in Brazil since 2003. The system announces an impressive 10.0 million IPv4 addresses, including a /13, and supports IPv6. Its primary geographic footprint is in Australia. This AS has recently updated its prefix announcements.

Basic Information

Country
🇧🇷 Brazil
Category
Internet Service Provider
Network Role
Stub Network
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
November 27, 2003
Last Changed
April 01, 2026
Last Seen
May 18, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
1 581 / 268
IPv6 Prefixes (raw / aggregated)
1 669 / 131
IPv4 Addresses
9 957 120
Largest IPv4 Prefix
/13 (524 288 addresses)
Largest IPv6 Prefix
/38
Geolocated Countries
🇦🇺 Australia (7 726 080 IPs)
Prefix Changed
May 19, 2026

Reputation

Reputation
Good — 203 flagged IPs out of 9 957 120 total (0.00%)
Open Proxies
2 known open proxies in this network

Connectivity Summary

Upstream Providers
2 upstreams providing transit
Peers
27 networks exchanging traffic without transit
Degree
29 unique BGP neighbors
Reach
0 networks in customer cone

Upstream Providers (2)

Prefix Lists

IPv4 Prefixes (1 581 total)

  • 179.136.0.0/13 (524 288 addresses (/13 prefix))
  • 191.176.0.0/13 (524 288 addresses (/13 prefix))
  • 186.204.0.0/14 (262 144 addresses (/14 prefix))
  • 201.80.0.0/14 (262 144 addresses (/14 prefix))
  • 187.36.0.0/14 (262 144 addresses (/14 prefix))
  • 187.180.0.0/14 (262 144 addresses (/14 prefix))
  • 189.4.0.0/14 (262 144 addresses (/14 prefix))
  • 189.60.0.0/14 (262 144 addresses (/14 prefix))
  • 189.100.0.0/14 (262 144 addresses (/14 prefix))
  • 189.120.0.0/14 (262 144 addresses (/14 prefix))
  • 191.188.0.0/14 (262 144 addresses (/14 prefix))
  • 177.80.0.0/14 (262 144 addresses (/14 prefix))
  • 179.222.0.0/15 (131 072 addresses (/15 prefix))
  • 179.158.0.0/15 (131 072 addresses (/15 prefix))
  • 179.212.0.0/15 (131 072 addresses (/15 prefix))
  • 177.192.0.0/15 (131 072 addresses (/15 prefix))
  • 177.182.0.0/15 (131 072 addresses (/15 prefix))
  • 186.220.0.0/15 (131 072 addresses (/15 prefix))
  • 187.2.0.0/15 (131 072 addresses (/15 prefix))
  • 187.22.0.0/15 (131 072 addresses (/15 prefix))
  • 201.74.0.0/15 (131 072 addresses (/15 prefix))
  • 179.152.0.0/15 (131 072 addresses (/15 prefix))
  • 177.140.0.0/15 (131 072 addresses (/15 prefix))
  • 181.220.0.0/15 (131 072 addresses (/15 prefix))
  • 179.208.0.0/15 (131 072 addresses (/15 prefix))
  • 177.32.0.0/15 (131 072 addresses (/15 prefix))
  • 179.234.0.0/15 (131 072 addresses (/15 prefix))
  • 179.218.0.0/15 (131 072 addresses (/15 prefix))
  • 187.106.0.0/16 (65 536 addresses (/16 prefix))
  • 179.232.0.0/16 (65 536 addresses (/16 prefix))
  • 187.255.0.0/16 (65 536 addresses (/16 prefix))
  • 187.122.0.0/16 (65 536 addresses (/16 prefix))
  • 189.29.0.0/16 (65 536 addresses (/16 prefix))
  • 191.184.0.0/16 (65 536 addresses (/16 prefix))
  • 181.213.0.0/16 (65 536 addresses (/16 prefix))
  • 179.156.0.0/16 (65 536 addresses (/16 prefix))
  • 189.33.0.0/16 (65 536 addresses (/16 prefix))
  • 179.210.0.0/16 (65 536 addresses (/16 prefix))
  • 177.142.0.0/16 (65 536 addresses (/16 prefix))
  • 179.154.0.0/16 (65 536 addresses (/16 prefix))
  • 187.67.0.0/16 (65 536 addresses (/16 prefix))
  • 179.217.0.0/16 (65 536 addresses (/16 prefix))
  • 187.65.0.0/16 (65 536 addresses (/16 prefix))
  • 201.52.0.0/16 (65 536 addresses (/16 prefix))
  • 189.54.0.0/16 (65 536 addresses (/16 prefix))
  • 177.35.0.0/16 (65 536 addresses (/16 prefix))
  • 187.21.0.0/16 (65 536 addresses (/16 prefix))
  • 179.105.0.0/16 (65 536 addresses (/16 prefix))
  • 177.235.0.0/16 (65 536 addresses (/16 prefix))
  • 201.17.0.0/16 (65 536 addresses (/16 prefix))

IPv6 Prefixes (1 669 total)

  • 2804:14c::/38
  • 2804:14d:ec00::/39
  • 2804:14c:400::/40
  • 2804:14c:3b00::/40
  • 2804:14c:3d00::/40
  • 2804:14c:3f00::/40
  • 2804:14c:4100::/40
  • 2804:14c:4300::/40
  • 2804:14c:4500::/40
  • 2804:14c:4700::/40
  • 2804:14c:5500::/40
  • 2804:14c:5700::/40
  • 2804:14c:5900::/40
  • 2804:14c:5b00::/40
  • 2804:14c:5d00::/40
  • 2804:14c:5f00::/40
  • 2804:14c:6100::/40
  • 2804:14c:6300::/40
  • 2804:14c:6500::/40
  • 2804:14c:6b00::/40
  • 2804:14c:6f00::/40
  • 2804:14c:7500::/40
  • 2804:14c:7700::/40
  • 2804:14c:7900::/40
  • 2804:14c:7b00::/40
  • 2804:14c:7d00::/40
  • 2804:14c:7f00::/40
  • 2804:14c:8100::/40
  • 2804:14c:8300::/40
  • 2804:14c:8500::/40
  • 2804:14c:8700::/40
  • 2804:14c:9900::/40
  • 2804:14c:9b00::/40
  • 2804:14c:9d00::/40
  • 2804:14c:a700::/40
  • 2804:14c:a900::/40
  • 2804:14c:b100::/40
  • 2804:14c:b300::/40
  • 2804:14c:b500::/40
  • 2804:14c:bb00::/40
  • 2804:14c:bd00::/40
  • 2804:14c:bf00::/40
  • 2804:14c:c600::/40
  • 2804:14c:ca00::/40
  • 2804:14c:cc00::/40
  • 2804:14c:ce00::/40
  • 2804:14c:d000::/40
  • 2804:14c:d400::/40
  • 2804:14c:d800::/40
  • 2804:14c:da00::/40