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Autonomous System

AS22121TOPSHAM-COMMUNICATIONS - Topsham Communications LLC(US)

Last fetched

AS22121 is an Autonomous System operated by TOPSHAM-COMMUNICATIONS - Topsham Communications LLC and registered in US. As of Thu, 21 May 2026 01:11:44 GMT, it announces 4 routed IP prefixes and peers with 2 other Autonomous Systems in the WhisperGraph BGP dataset.

Nutrition Label

WHISPER CANON · AS22121Routing diversity3.5/10Peering density1.9/10MOAS conflict✓ noneThreat-feed listingsWHOIS transparencyResolver footprintcanon.whisper.security/asn/22121

Routing footprint

AS22121 announces 4 distinct routed prefixes. The 4-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

Peering ecosystem

2 distinct peers via BGP. The first 2 are listed below.

Peer ASNOperatorCountry
AS11722US
AS17356VERMONT-TELE - Vermont Telephone Company, Inc.US

Blast radius

Approximate count of dependent hostnames if AS22121 disappeared from the routing table.

~8 hostnames depend on this network.Sampled from 10 prefixes, snapshot Thu, 21 May 2026 01:11:44 GMT.

MOAS / hijack watch

Prefixes routed by AS22121 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 AS22121 is unique to AS22121 in the current routing snapshot.

Threat posture

Related pages

Pivot deeper into the graph from AS22121.

Cypher and MCP

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

MATCH (a:ASN {name: "AS22121"})-[: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.