Autonomous System
AS321 — DNIC-ASBLK-00306-00371 - United States Department of Defense DoD(US)
Last fetched
AS321 is an Autonomous System operated by DNIC-ASBLK-00306-00371 - United States Department of Defense DoD and registered in US. As of Wed, 20 May 2026 21:51:27 GMT, it announces 14 routed IP prefixes and peers with 5 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS321 announces 14 distinct routed prefixes. The 14-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
Peering ecosystem
5 distinct peers via BGP. The first 5 are listed below.
| Peer ASN | Operator | Country |
|---|---|---|
| AS306 | DNIC-ASBLK-00306-00371 - United States Department of Defense DoD | US |
| AS27066 | DNIC-ASBLK-27032-27159 - United States Department of Defense DoD | US |
| AS27065 | DNIC-ASBLK-27032-27159 - United States Department of Defense DoD | US |
| AS27064 | DNIC-ASBLK-27032-27159 - United States Department of Defense DoD | US |
| AS5374 | DNIC-ASBLK-05120-05376 - United States Department of Defense DoD | US |
Blast radius
Approximate count of dependent hostnames if AS321 disappeared from the routing table.
No dependent hostnames recorded for this network.Snapshot Wed, 20 May 2026 21:51:27 GMT.
MOAS / hijack watch
Prefixes routed by AS321 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 AS321 is unique to AS321 in the current routing snapshot.
Threat posture
Related pages
Pivot deeper into the graph from AS321.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS321"})-[: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.