subnet.im

AS33652Comcast Cable Communications, LLC

United StatesRegistryARINTypeCarrier

As of 28th September 2026, AS33652 (Comcast Cable Communications, LLC), a transit carrier registered in the United States with ARIN, originates 32 IPv4 prefixes covering 14.1k addresses and 152 IPv6 prefixes. By IPv4 address space that makes it the 8,776th-largest of the 79,544 networks we see originating IPv4, and the 2,767th-largest of 18,428 in the United States. It is seen behind 2 upstream networks, most often AS7922 (Comcast Cable Communications, LLC) and AS3356 (Lumen (Level 3)), and in front of 75 downstream networks. 97% 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

32

IPv6 prefixes

152

IPv4 addresses

14.1k

IPv6 /64s

10M

Upstream graph

The networks AS33652 is seen behind, one and two hops out, drawn from real AS paths.

AS33652Toward the internet core
Upstream graph for AS33652: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS33652Comcast Cable Com…This networkAS3356Lumen (Level 3)AS7922Comcast Cable Com…AS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS1299Arelion (fka. Tel…

Networks observed one and two hops upstream of AS33652 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

155

adjacent networks

Upstreams
21%
Peers
7850%
Downstreams
7548%

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

Upstreams of AS33652
NetworkCountryRelationshipPathsVantage pts
AS7922Comcast Cable Communications, LLCUSPeer17,540146
AS3356Lumen (Level 3)USPeer2,07760

Prefixes

All 184

The largest blocks AS33652 originates, widest first.

Largest prefixes originated by AS33652
PrefixAddressesVisibility
64.130.16.0/204.1k82/82
64.50.168.0/212k82/82
107.1.222.0/2351281/82
24.104.146.0/2425681/82
50.147.168.0/2425681/82
50.169.236.0/2425681/82
50.169.239.0/2425681/82
50.201.230.0/2425681/82
50.203.219.0/2425681/82
50.204.71.0/2425681/82

Routing health

How AS33652'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

  • Valid97.3%179
  • Invalid0.0%0
  • No ROA2.7%5

Propagation

  • Globally propagated90% of full-feed peers or more100.0%184
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 32 prefixes

IPv6 — 152 prefixes

  • /4865.5k × /64100.0%152

Recent changes

Announcements that started or stopped since 29th Aug 2026.

  • Announced2001:559:822d::/4826th Sept 2026
  • Withdrawn2001:559:822d::/4826th Sept 2026
  • Withdrawn2001:559:26f::/4821st Sept 2026
  • Withdrawn2001:559:867d::/4821st Sept 2026
  • Withdrawn2001:559:867f::/4821st Sept 2026
  • Withdrawn2001:559:c065::/4821st Sept 2026

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