$ query “AS7018” --type=asn → 1 result(s)

AS7018 · ATT-INTERNET4

AT&T Enterprises LLC

AS7018 belongs to AT&T Enterprises LLC and is a Tier-1 transit provider, registered in the United States since 1996. The system announces a whopping 96.4 million IPv4 addresses (2.60% of routable IPv4 space), including a /8, and supports IPv6. Its primary geographic footprint is in the United States, with additional presence in Brazil and Canada, and smaller footprints in 58 additional countries. Prefix announcements for this AS were recently updated.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • Space Overlord — Over 10 million IPv4 addresses
  • #35 by Reach — Top 100 by customer cone size
  • #41 by Degree — Top 100 by unique BGP neighbor count
  • Pioneer — Registered before the year 2000

Basic Information

Country
🇺🇸 United States
Category
Internet Service Provider
Network Role
Tier-1 Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
July 30, 1996
Last Changed
March 04, 2026
Last Seen
October 10, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
627 / 533
IPv6 Prefixes (raw / aggregated)
15 / 15
IPv4 Addresses
96 429 824
Largest IPv4 Prefix
/8 (16 777 216 addresses)
Largest IPv6 Prefix
/24
Geolocated Countries
🇺🇸 United States (96 173 520 IPs), 🇧🇷 Brazil (31 792 IPs), 🇨🇦 Canada (20 976 IPs) and 58 more
Prefix Changed
October 11, 2026

Reputation

Reputation
Good — 390 flagged IPs out of 96 429 824 total (0.00%)
Tor Exit Nodes
1 known Tor exit nodes in this network
Open Proxies
3 known open proxies in this network

Connectivity Summary

Peers
41 networks exchanging traffic without transit
Downstream Customers
2 292 downstreams buying transit
Unclassified
31 unclassified BGP neighbors
Degree
2 364 unique BGP neighbors
Reach
2 628 networks in customer cone

Prefix Lists

IPv4 Prefixes (627 total)

  • 12.0.0.0/8 (16 777 216 addresses (/8 prefix))
  • 32.0.0.0/9 (8 388 608 addresses (/9 prefix))
  • 107.64.0.0/10 (4 194 304 addresses (/10 prefix))
  • 108.192.0.0/10 (4 194 304 addresses (/10 prefix))
  • 99.32.0.0/11 (2 097 152 addresses (/11 prefix))
  • 107.192.0.0/11 (2 097 152 addresses (/11 prefix))
  • 108.64.0.0/11 (2 097 152 addresses (/11 prefix))
  • 23.112.0.0/12 (1 048 576 addresses (/12 prefix))
  • 32.128.0.0/12 (1 048 576 addresses (/12 prefix))
  • 45.16.0.0/12 (1 048 576 addresses (/12 prefix))
  • 63.192.0.0/12 (1 048 576 addresses (/12 prefix))
  • 64.160.0.0/12 (1 048 576 addresses (/12 prefix))
  • 67.112.0.0/12 (1 048 576 addresses (/12 prefix))
  • 75.48.0.0/12 (1 048 576 addresses (/12 prefix))
  • 99.16.0.0/12 (1 048 576 addresses (/12 prefix))
  • 99.112.0.0/12 (1 048 576 addresses (/12 prefix))
  • 99.160.0.0/12 (1 048 576 addresses (/12 prefix))
  • 104.0.0.0/12 (1 048 576 addresses (/12 prefix))
  • 104.48.0.0/12 (1 048 576 addresses (/12 prefix))
  • 104.176.0.0/12 (1 048 576 addresses (/12 prefix))
  • 107.128.0.0/12 (1 048 576 addresses (/12 prefix))
  • 162.192.0.0/12 (1 048 576 addresses (/12 prefix))
  • 162.224.0.0/12 (1 048 576 addresses (/12 prefix))
  • 172.0.0.0/12 (1 048 576 addresses (/12 prefix))
  • 32.176.0.0/13 (524 288 addresses (/13 prefix))
  • 32.224.0.0/13 (524 288 addresses (/13 prefix))
  • 65.64.0.0/13 (524 288 addresses (/13 prefix))
  • 66.120.0.0/13 (524 288 addresses (/13 prefix))
  • 66.136.0.0/13 (524 288 addresses (/13 prefix))
  • 68.88.0.0/13 (524 288 addresses (/13 prefix))
  • 68.120.0.0/13 (524 288 addresses (/13 prefix))
  • 68.248.0.0/13 (524 288 addresses (/13 prefix))
  • 69.216.0.0/13 (524 288 addresses (/13 prefix))
  • 70.136.0.0/13 (524 288 addresses (/13 prefix))
  • 75.8.0.0/13 (524 288 addresses (/13 prefix))
  • 75.24.0.0/13 (524 288 addresses (/13 prefix))
  • 75.32.0.0/13 (524 288 addresses (/13 prefix))
  • 76.224.0.0/13 (524 288 addresses (/13 prefix))
  • 99.0.0.0/13 (524 288 addresses (/13 prefix))
  • 99.64.0.0/13 (524 288 addresses (/13 prefix))
  • 99.88.0.0/13 (524 288 addresses (/13 prefix))
  • 99.96.0.0/13 (524 288 addresses (/13 prefix))
  • 99.128.0.0/13 (524 288 addresses (/13 prefix))
  • 99.184.0.0/13 (524 288 addresses (/13 prefix))
  • 166.128.0.0/13 (524 288 addresses (/13 prefix))
  • 166.184.0.0/13 (524 288 addresses (/13 prefix))
  • 166.192.0.0/13 (524 288 addresses (/13 prefix))
  • 64.216.0.0/14 (262 144 addresses (/14 prefix))
  • 67.36.0.0/14 (262 144 addresses (/14 prefix))
  • 67.64.0.0/14 (262 144 addresses (/14 prefix))

IPv6 Prefixes (15 total)

  • 2600:300::/24
  • 2602:300::/24
  • 2600:1700::/28
  • 2001:1890::/29
  • 2606:ae00::/32
  • 2607:9080:6::/48
  • 2620:0:f40::/48
  • 2620:27:f::/48
  • 2620:59:a000::/48
  • 2620:98:6000::/48
  • 2620:a5:2000::/48
  • 2620:b1:8000::/48
  • 2620:ca:e000::/48
  • 2620:129:100f::/48
  • 2a02:13e0:1::/48