Autonomous System

AS18729 — SHAWMUT - Shawmut Design & Construction(US)

Last fetched Sun, 06 Sep 2026 14:19:37 GMT

AS18729 is an Autonomous System operated by SHAWMUT - Shawmut Design & Construction and registered in US. As of Sun, 06 Sep 2026 14:19:37 GMT, it announces 2 routed IP prefixes and peers with 1 other Autonomous System in the WhisperGraph BGP dataset.

Nutrition Label

Routing footprint

AS18729 announces 2 distinct routed prefixes. The 2-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

Peering ecosystem

1 distinct peers via BGP. The first 1 are listed below.

Peer ASN	Operator	Country
AS46887	CROWNCASTLE-AS46887 - Crown Castle Fiber LLC	US

Blast radius

Count of dependent hostnames if AS18729 disappeared from the routing table.

11 hostnames depend on this network.Exact count across all 2 announced prefixes. Snapshot Fri, 12 Jun 2026 14:00:47 GMT.

MOAS / hijack watch

Prefixes routed by AS18729 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 AS18729 is unique to AS18729 in the current routing snapshot.

Threat posture

Pivot deeper into the graph from AS18729.

Cypher and MCP

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

MATCH (a:ASN {name: "AS18729"})-[: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.