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Autonomous System

AS12271TWC-12271-NYC - Charter Communications Inc(US)

Last fetched

AS12271 is an Autonomous System operated by TWC-12271-NYC - Charter Communications Inc and registered in US. As of Thu, 21 May 2026 06:18:06 GMT, it announces 115 routed IP prefixes and peers with 52 other Autonomous Systems in the WhisperGraph BGP dataset.

Nutrition Label

WHISPER CANON · AS12271Routing diversity10.0/10Peering density6.9/10MOAS conflict✓ noneThreat-feed listingsWHOIS transparencyResolver footprintcanon.whisper.security/asn/12271

Routing footprint

AS12271 announces 115 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

Peering ecosystem

52 distinct peers via BGP. The first 52 are listed below.

Peer ASNOperatorCountry
AS5091STRIPE - Stripe, Inc.US
AS401827UNITED NATIONS FEDERAL CREDIT UNION - UNFCUUS
AS400508JS-ASN-01 - The Juilliard SchoolUS
AS400392EMPIRE-1 - Empire Resorts, Inc.US
AS399601601-LEXINGTON-BGP - etc.venues NYC LLCUS
AS397595MTAPD-LIC - MTAPDUS
AS397352MEDISYS-36 - Medisys Health Network, Inc.US
AS395359ITH-AS-1 - InTouch HealthUS
AS395095GARNET-HEALTH - Orange Regional Medical CenterUS
AS395090GAGOSIAN-GALLERY - Gagosian Gallery, IncUS
AS395060MACMILLAN-PUBLISHERS - Macmillan Publishers IncUS
AS393753AS393753 - The Brooklyn Hospital CenterUS
AS3935699-11-MEMORIAL - 911 MEMORIALUS
AS393562MOB-ASN - Mobilitie, LLCUS
AS62566STARBUCKS - Starbucks Coffee CompanyUS
AS55273360-MADDISON-BGP - etc.venues NYC LLCUS
AS5512337589 - Brilliant JewelersMJJ Inc.US
AS54226SUNY-OPTOMETRY - SUNY College of OptometryUS
AS54201WEWORK-MANAGEMENT-LLC - We Link Networks LLCUS
AS54113FASTLY - Fastly, Inc.US
AS53693RAA-NYC-NET - Ralph Appelbaum Associates, Inc.US
AS46765ASN1 - Liberum Capital Inc.US
AS40458CMIGNET - CMFG Life Insurance CompanyUS
AS40362CHAPIN-AS - Chapin SchoolUS
AS40170MTR0-01 - Intermetro Communications, Inc.US
AS36100MTC-BROADBAND - MTC Broadband, Inc.US
AS33428NHS-39AS - The New-York Historical SocietyUS
AS33010INTERCHURCH - The Interchurch CenterUS
AS32730NAHQPU - LG CNS America Inc.US
AS31869LL-BEAN - LL BeanUS
AS30012ASN-UNIVERSAL-MUSIC-GROUP-INC - Universal Music Group, INC.US
AS27185DHS-INTERNET - Danbury Hospital - ITGUS
AS26738DEERFIELD - Deerfield Partners, L.P.US
AS25891SVA-ANS - School Of Visual Arts, Inc.US
AS25816TOURO - Touro CollegeUS
AS25669TOWERPRODUCTS - MARKERTEK VIDEO SUPPLYUS
AS23325MCL-ASN - Magnitude Capital, LLCUS
AS23097COHEN-STEERS - COHEN & STEERS CAPITAL MGMT., INC.US
AS23010FFHSJ - Fried, Frank, Harris, Shriver & Jacobson LLPUS
AS22303NEWPALTZEDU - State University of New York at New PaltzUS
AS22252AS22252 - The City of New YorkUS
AS22209RUDYS-AS - RUDYS INFLIGHT CATERINGUS
AS20252JSIWMC - Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell UniversityUS
AS19796SHUBERT - Shubert Organization, Inc.US
AS19794CEMENTWORKS - The Cementworks LLCUS
AS18694SDWARREN - Sappi Fine Paper North AmericaUS
AS18564SJU149068 - St. Johns University, New YorkUS
AS14478RECURSE-CENTER - Recurse CenterUS
AS14465HITN-AS-1 - HITNUS
AS14460HORIZON - Horizon Media, Inc.US
AS7843TWC-7843-BB - Charter Communications IncUS
AS6292MTAPD-GB - MTAPDUS

Blast radius

Approximate count of dependent hostnames if AS12271 disappeared from the routing table.

~21,275 hostnames depend on this network.Sampled from 10 prefixes, snapshot Thu, 21 May 2026 06:18:06 GMT.

MOAS / hijack watch

Prefixes routed by AS12271 that another Autonomous System also announces. A non-empty list is one of the strongest BGP-hijack signals available without active probes.

No active MOAS conflicts. Every prefix announced by AS12271 is unique to AS12271 in the current routing snapshot.

Threat posture

Related pages

Pivot deeper into the graph from AS12271.

Cypher and MCP

Reproduce the headline metric directly against graph.whisper.security:

MATCH (a:ASN {name: "AS12271"})-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (a)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN a.name AS asn, n.name AS operator, c.name AS country

Or query Whisper from your own LLM workflow via the Whisper MCP server.