AS33668 CMCS - Comcast Cable Communications, LLC
🇺🇸ARINassigned
Announced Prefixes (BGP)
270total
192 IPv478 IPv6
IPv4 Addresses
Allocated (RIR)1,024
Announced (BGP)1.9M
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)1×10³¹
Announced Prefixes
(BGP)270|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 | |
| Valid | - | 2026-10-11 |
1-10 of 270
1 / 27
Allocated Prefixes
(RIR)4Prefix | Country | RIR | Status |
|---|---|---|---|
| 192.88.105.0/24 | 🇺🇸 US | ARIN | allocated |
| 192.138.205.0/24 | 🇺🇸 US | ARIN | allocated |
| 198.180.251.0/24 | 🇺🇸 US | ARIN | allocated |
| 198.199.172.0/24 | 🇺🇸 US | ARIN | allocated |
All 270 announced prefixes of AS33668 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS33668 hands its own prefixes to: transit providers, or peers at an exchange.
- AS7922Comcast Cable Communications270
Downstreams (32)
Networks whose own prefixes AS33668 passes on: usually its customers.
- AS26463Macomb Intermediate School District28
- AS62658City Of Wyandotte14
- AS33372Spartan Stores12
- AS394446Newaygo County Regional Educational Service Agency10
- AS10351Enertron L.L.C4
- AS393256DTE Energy Company4
- AS11115Otava2
- AS14257The Iserv Company2
- AS393471FOS Hosting2
- AS393663Acument Global Technologies2
- AS396224NSF International2
- AS397367Cranbrook Educational Community2
- AS1438PIONEER STATE MUTUAL INSURANCE1
- AS4208The Iserv Company1
- AS13325Michigan State Government1
- AS14842Baudville1
- AS17003Zoetis1
- AS19031CU*Answers1
- AS19277ImageMaster1
- AS21970PCE Systems1
- AS26510Fishbeck, Thompson, Carr & Huber1
- AS32477Otava1
- AS35928BECKMAN COULTER1
- AS36040Google1
- AS46674City Of Grand Rapids1
- AS53352Henry Ford Health System1
- AS396332SITEONE LANDSCAPE SUPPLY1
- AS397871City Of Detroit1
- AS397969Cambium Learning1
- AS400315Cold Heading Company1
- AS401285MICHIGAN VIRTUAL1
- AS402050GA Business Purchaser1
Other adjacent networks (1)
Adjacent to AS33668 in the transit part of AS paths: peers, providers or customers.
- AS3356Level 3 Parent3
ASPA
No ASPA
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- ASPA explainedWhy AS33668 should publish an ASPA object
- IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/33668Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/33668" | jq