subnet.im

AS2379CenturyLink Communications, LLC

United StatesRegistryARINTypeEyeball

As of 23rd October 2026, AS2379 (CenturyLink Communications, LLC), an access network registered in the United States with ARIN, originates 106 IPv4 prefixes covering 689k addresses. By IPv4 address space that makes it the 577th-largest of the 79,658 networks we see originating IPv4, and the 139th-largest of 18,483 in the United States. It is seen behind 1 upstream network, most often AS22561 (Lumen (fka LightCore)). None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

106

IPv6 prefixes

0

IPv4 addresses

689k

IPv6 /64s

0

Upstream graph

The networks AS2379 is seen behind, one and two hops out, drawn from real AS paths.

AS2379Toward the internet core
Upstream graph for AS2379: 2 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS2379CenturyLink Commu…This networkAS22561Lumen (fka LightC…AS209Lumen (ex. Qwest)

Networks observed one and two hops upstream of AS2379 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS2379
NetworkCountryRelationshipPathsVantage pts
AS22561Lumen (fka LightCore)USPeer8,16277

Prefixes

All 106

The largest blocks AS2379 originates, widest first.

Largest prefixes originated by AS2379
PrefixAddressesVisibility
199.44.0.0/1665.5k77/77
138.210.0.0/1732.8k77/77
138.210.128.0/1732.8k77/77
207.30.128.0/1732.8k77/77
209.26.0.0/1732.8k77/77
209.26.128.0/1732.8k77/77
65.40.0.0/1816.4k77/77
205.245.0.0/1816.4k77/77
207.30.0.0/1816.4k77/77
209.40.0.0/1816.4k77/77

Routing health

How AS2379'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%106

Propagation

  • Globally propagated90% of full-feed peers or more100.0%106
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 106 prefixes

Recent changes

Announcements that started or stopped since 24th Sept 2026.

No announcement by AS2379 started or stopped in this period.

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