AS306 — DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)(US)

Nutrition Label

Routing footprint

AS306 announces 340 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

• 55.10.0.0/16
• 55.15.0.0/16
• 55.15.200.0/22
• 55.17.73.0/24
• 55.17.0.0/16
• 55.22.69.0/24
• 55.25.5.0/24
• 55.38.0.0/16
• 55.44.0.0/16
• 55.51.0.0/16
• 55.61.0.0/16
• 55.68.0.0/16
• 55.78.0.0/16
• 55.85.15.0/24
• 55.85.27.0/24
• 55.85.29.0/24
• 55.85.30.0/24
• 55.85.34.0/24
• 55.85.35.0/24
• 55.85.43.0/24
• 55.85.60.0/23
• 55.85.64.0/23
• 55.85.66.0/23
• 55.85.80.0/23
• 55.85.84.0/23

Peering ecosystem

58 distinct peers via BGP. The first 58 are listed below.

Blast radius

Count of dependent hostnames if AS306 disappeared from the routing table.

≥439 hostnames depend on this network.Verified lower bound — counted across 50 of 330 announced prefixes. The true total is at least this many. Snapshot Mon, 27 Jul 2026 20:00:33 GMT.

MOAS / hijack watch

Prefixes routed by AS306 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 AS306 is unique to AS306 in the current routing snapshot.

Threat posture

Related pages

Pivot deeper into the graph from AS306.

• Country · US
• Peer · DNIC-ASBLK-01529-01530 - Headquarters, USAISCAS1530
• Prefix · 55.10.0.0/16
• Live MOAS conflicts feed
• Threat feed · Spamhaus DROP
• Browse this ASN range · 0-999
• Glossary · What is BGP?
• Whisper Internet Directory — home

Cypher and MCP

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

MATCH (a:ASN {name: "AS306"})-[: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.