subnet.im

AS25993AT&T Enterprises, LLC

United StatesRegistryARIN

As of 11th November 2026, AS25993 (AT&T Enterprises, LLC), a network registered in the United States with ARIN, originates 21 IPv4 prefixes covering 37.1k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 5,145th-largest of the 80,747 networks we see originating IPv4, and the 1,787th-largest of 18,752 in the United States. It is seen behind 1 upstream network, most often AS7018 (AT&T Enterprises, LLC). 9% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 43% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

21

IPv6 prefixes

2

IPv4 addresses

37.1k

IPv6 /64s

131k

Upstream graph

The networks AS25993 is seen behind, one and two hops out, drawn from real AS paths.

AS25993Toward the internet core
Upstream graph for AS25993: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS25993AT&T Enterprises,…This networkAS7018AT&T Enterprises,…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS25993 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

3

adjacent networks

Upstreams
133%
Peers
267%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS25993
NetworkCountryRelationshipPathsVantage pts
AS7018AT&T Enterprises, LLCUSPeer745138

Prefixes

The largest blocks AS25993 originates, widest first.

Largest prefixes originated by AS25993
PrefixAddressesVisibility
144.60.32.0/198.2k1/76
144.60.64.0/198.2k1/76
108.79.160.0/204.1k76/76
144.60.16.0/204.1k1/76
144.60.0.0/212k1/76
144.60.128.0/212k76/76
32.139.208.0/221k76/76
144.60.12.0/221k1/76
144.60.112.0/221k76/76
144.60.124.0/221k76/76

Routing health

How AS25993's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid8.7%2
  • Invalid0.0%0
  • No ROA91.3%21

Propagation

  • Globally propagated90% of full-feed peers or more43.5%10
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%56.5%13

Prefix sizes

IPv4 — 21 prefixes

IPv6 — 2 prefixes

  • /4865.5k × /64100.0%2

Recent changes

Announcements that started or stopped since 12th Oct 2026.

  • Withdrawn144.60.192.0/195th Nov 2026
  • Withdrawn205.173.58.0/245th Nov 2026
  • Announced144.60.209.0/2420th Oct 2026
  • Announced144.60.209.0/2420th Oct 2026
  • Withdrawn144.60.209.0/2420th Oct 2026
  • Withdrawn144.60.209.0/2417th Oct 2026
  • Announced144.60.209.0/2417th Oct 2026
  • Withdrawn144.60.209.0/2417th Oct 2026
  • Announced144.60.209.0/2416th Oct 2026
  • Withdrawn144.60.209.0/2416th Oct 2026

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.