Autonomous System

AS19872 — CUSTOM-76 - Point Broadband Fiber Holding, LLC(US)

Last fetched Thu, 21 May 2026 10:24:30 GMT

AS19872 is an Autonomous System operated by CUSTOM-76 - Point Broadband Fiber Holding, LLC and registered in US. As of Thu, 21 May 2026 10:24:30 GMT, it announces 2 routed IP prefixes and peers with 1 other Autonomous System in the WhisperGraph BGP dataset.

Nutrition Label

Routing footprint

AS19872 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
AS46208	PFNL-ASN - Peninsula Fiber Network, LLC	US

Blast radius

Approximate count of dependent hostnames if AS19872 disappeared from the routing table.

~23 hostnames depend on this network.Sampled from 10 prefixes, snapshot Thu, 21 May 2026 10:24:30 GMT.

MOAS / hijack watch

Prefixes routed by AS19872 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 AS19872 is unique to AS19872 in the current routing snapshot.

Threat posture

Pivot deeper into the graph from AS19872.

Cypher and MCP

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

MATCH (a:ASN {name: "AS19872"})-[: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.