Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS33659

Announcement observedARIN

CMCS - Comcast Cable Communications, LLC · CMCS

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/10/2026, 19:24:33Snapshot expired

View network topology RDAP registration

ASN: AS33659
Registration country: United States
Name: CMCS - Comcast Cable Communications, LLC
Abbreviation: CMCS
Registration date: 2/16/2005, 19:59:31
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
107.0.169.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
138.226.0.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
138.226.88.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
158.62.212.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
158.62.214.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
158.62.215.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
167.254.205.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
170.100.128.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
170.100.192.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
170.100.200.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
170.62.252.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
170.62.255.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
185.188.192.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/9/2026, 00:00:00	✓	×	Historical record
185.205.204.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
192.133.105.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
192.135.0.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
192.64.165.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
195.138.110.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/9/2026, 08:00:00	✓	×	Currently valid
198.145.225.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
198.184.150.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	9/26/2026, 16:00:00	✓	×	Historical record
24.75.216.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	9/26/2026, 16:00:00	✓	×	Historical record
31.132.54.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
45.248.54.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
45.58.208.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
45.58.210.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
50.207.78.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
50.223.132.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
50.228.255.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
50.229.146.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
50.231.144.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
50.231.154.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
50.231.216.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
50.231.89.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
50.235.249.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
50.238.108.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
50.238.109.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
63.246.150.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
64.253.90.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
64.52.28.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
68.234.42.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/20/2026, 08:00:00	10/9/2026, 16:00:00	✓	×	Currently valid
69.30.72.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
69.30.73.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
69.30.74.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
69.30.75.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
69.30.76.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
69.30.77.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
69.91.139.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
69.91.182.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
78.31.205.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid
9.142.0.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 08:00:00	10/10/2026, 16:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: CMCS - Comcast Cable Communications, LLC
RIR: ARIN
Registration country: United States
Registration date: 2/16/2005, 19:59:31
Abuse contact: abuse@comcast.net

Snapshot trend

10/10/2026, 19:24:3350 v4125 v62 Upstream · 0 Uncertain

10/5/2026, 17:48:3950 v4126 v62 Upstream · 0 Uncertain

10/2/2026, 16:02:3750 v4126 v62 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · rir-rdap-asn · iana-rdap-asn-bootstrap