Autonomous system
AS13367 COMCAST-13367
Unclassified ARIN Cable/DSL/ISP
Summary
Comcast
isp telecom media
A million addresses for one state, and one registry record has the company name typed twice.
What it's used for
- A large United States cable operator's regional network. 1,005,056 addresses across 110 IPv4 prefixes, seventy-one IPv6 prefixes, and seventy-nine observed BGP neighbours.
Notable
- Netnames run in three styles:
CCCH-3-34andCCCH3-10, a geographic seriesMINNESOTA-14,MINNESOTA-32,MINNESOTA-41,MINNESOTA-42,MINNESOTA-43, andJUMPSTART-5. - One block's registrant reads
Comcast Comcast Cable Communications, Inc.. - Others alternate between
Inc.andLLCforms of the same name. - Every sampled name is of the form
c-75-72-128-0.hsd1.mn.comcast.net. - Two prefixes' registry lookups failed, so nothing is known about their registration here.
Interesting
- The doubled company name is a paste that went in twice and was never noticed, sitting in the record for a block of sixty-five thousand addresses. Nobody reads these fields, which is exactly why the error survives.
- Two adjacent /17s share the netname
MINNESOTA-32, so the registry sees one allocation where the routing table sees two announcements. - Three netname styles are three eras of the same company: an internal cable handle, a state-by-state scheme adopted once the footprint got large enough to organise geographically, and a brand from an early high-speed service that outlived the marketing.
- Every reverse name carries the state code, so the geography is in DNS as well as in the netnames.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 110 prefixes · 1.01M addresses IPv6 70 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 180 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS13367- Registry name
- COMCAST-13367
- Registrant
- Comcast Cable Communications, LLC
- Abuse contact
- abuse@comcast.net
- Registered
- 2001-12-20
- Last changed
- 2021-01-25
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- Comcast - Minnesota
- Also known as
- Comcast - Minnesota
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Not Disclosed
- Peering policy
- Restrictive
- Facilities
- 1 facilities
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 89% valid · 62 valid, 8 with no ROA
- ROAs
- 1,943 authorising AS13367
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 70 announcements 6 other origin
- Route objects
- 20 naming AS13367
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,778 prefixes, as published 2026-10-20. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere