asn.dev

Autonomous system

AS11351 TWC-11351-NORTHEAST

Residential ARIN

IPv4 addresses 4.32M 197 prefixes
IPv6 prefixes 13 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 90 downstream
Flagged prefixes 0 none

Summary

Charter (legacy TWC Northeast)

United States · AI-generated

isp residential eyeball cable

A large Charter Communications network (TWC-11351-NORTHEAST) inherited from Time Warner Cable, now part of the Spectrum broadband footprint in the northeastern US (including the New York City metro).

What it's used for

  • Cable home internet for millions of residential Spectrum subscribers across the northeastern United States.

Notable

  • An "eyeball" network: addresses here are home connections, commonly behind carrier-grade NAT, not servers.
  • One of the primary legacy Time Warner Cable ASNs now operated by Charter; siblings include AS10796 and AS11427.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 90 downstream and 98 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS7843Charter Communications Inc8,395

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 197 prefixes · 4.32M addresses IPv6 13 prefixes

CountryNamePrefixes
USUnited States of America210

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS11351
Registry name
TWC-11351-NORTHEAST
Registrant
Charter Communications Inc
Abuse contact
abuse@charter.net
Registered
1998-07-14
Last changed
2018-11-27
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
88% valid · 124 valid, 17 with no ROA
ROAs
192 authorising AS11351
ASPA
no ASPA record
IRR
94% registered · 133 of 141 announcements 1 other origin
Route objects
269 naming AS11351

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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

Cross-check