Autonomous System

AS3623 — MCIASN-BLK - Verizon Business(US)

Last fetched Wed, 20 May 2026 23:34:48 GMT

AS3623 is an Autonomous System operated by MCIASN-BLK - Verizon Business and registered in US. As of Wed, 20 May 2026 23:34:48 GMT, it announces 0 routed IP prefixes and peers with 0 other Autonomous Systems in the WhisperGraph BGP dataset.

Nutrition Label

Routing footprint

AS3623 announces 0 distinct routed prefixes. The 0-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

AS3623 does not announce any prefixes in the current snapshot.

Peering ecosystem

0 distinct peers via BGP. The first 0 are listed below.

AS3623 has no observed peering relationships in the current snapshot.

Blast radius

Approximate count of dependent hostnames if AS3623 disappeared from the routing table.

No dependent hostnames recorded for this network.Snapshot Wed, 20 May 2026 23:34:48 GMT.

MOAS / hijack watch

Prefixes routed by AS3623 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 AS3623 is unique to AS3623 in the current routing snapshot.

Threat posture

Pivot deeper into the graph from AS3623.

Cypher and MCP

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

MATCH (a:ASN {name: "AS3623"})-[: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.