Autonomous System
AS21054 — FAST-TELCO(GB)
Last fetched
AS21054 is an Autonomous System operated by FAST-TELCO and registered in GB. As of Wed, 20 May 2026 23:31:33 GMT, it announces 15 routed IP prefixes and peers with 2 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS21054 announces 15 distinct routed prefixes. The 15-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.
Blast radius
Approximate count of dependent hostnames if AS21054 disappeared from the routing table.
~3 hostnames depend on this network.Sampled from 10 prefixes, snapshot Wed, 20 May 2026 23:31:33 GMT.
MOAS / hijack watch
Prefixes routed by AS21054 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 AS21054 is unique to AS21054 in the current routing snapshot.
Threat posture
Related pages
Pivot deeper into the graph from AS21054.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS21054"})-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (a)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN a.name AS asn, n.name AS operator, c.name AS countryOr query Whisper from your own LLM workflow via the Whisper MCP server.