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AS40264Charter Communications LLC

United StatesRegistryARIN

As of 27th September 2026, AS40264 (Charter Communications LLC), a network registered in the United States with ARIN, originates 18 IPv4 prefixes covering 15.9k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 8,262nd-largest of the 79,525 networks we see originating IPv4, and the 2,641st-largest of 18,428 in the United States. It is seen behind 2 upstream networks, most often AS20115 (Spectrum (Charter)) and AS10796 (Charter Communications Inc), and in front of 141 downstream networks. 68% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

18

IPv6 prefixes

4

IPv4 addresses

15.9k

IPv6 /64s

33.7M

Upstream graph

The networks AS40264 is seen behind, one and two hops out, drawn from real AS paths.

AS40264Toward the internet core
Upstream graph for AS40264: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS40264Charter Communica…This networkAS10796Charter Communica…AS20115Spectrum (Charter)AS3356Lumen (Level 3)AS7843Spectrum (Charter)AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS40264 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

290

adjacent networks

Upstreams
21%
Peers
14751%
Downstreams
14149%

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

Upstreams of AS40264
NetworkCountryRelationshipPathsVantage pts
AS20115Spectrum (Charter)USPeer10,013145
AS10796Charter Communications IncUSPeer9,330145

Prefixes

The largest blocks AS40264 originates, widest first.

Largest prefixes originated by AS40264
PrefixAddressesVisibility
76.58.8.0/212k81/81
144.168.16.0/212k81/81
192.62.232.0/212k81/81
199.15.240.0/212k81/81
76.58.48.0/221k81/81
82.27.4.0/221k81/81
82.27.12.0/221k81/81
82.29.16.0/221k81/81
82.29.32.0/221k81/81
138.207.2.0/2351281/81

Routing health

How AS40264'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

  • Valid68.2%15
  • Invalid0.0%0
  • No ROA31.8%7

Propagation

  • Globally propagated90% of full-feed peers or more100.0%22
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 18 prefixes

IPv6 — 4 prefixes

  • /4016.8M × /6450.0%2
  • /4865.5k × /6450.0%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Announced138.207.2.0/2322nd Sept 2026
  • Withdrawn198.184.26.0/2421st Sept 2026

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