AS17166 — TRAVELERSPCAS - Travelers Property Casualty Corp.(US)

Nutrition Label

Routing footprint

AS17166 announces 31 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

• 12.191.50.0/23
• 71.90.112.0/20
• 166.184.92.0/23
• 170.254.228.0/24
• 170.254.238.0/24
• 170.254.239.0/24
• 170.254.240.0/24
• 170.254.241.0/24
• 170.254.240.0/22
• 170.254.242.0/24
• 170.255.240.0/21
• 171.0.64.0/19
• 171.1.32.0/20
• 171.1.48.0/20
• 171.1.64.0/20
• 171.1.80.0/20
• 171.1.96.0/20
• 171.1.112.0/20
• 171.2.0.0/15
• 171.4.0.0/17
• 171.4.0.0/16
• 171.4.128.0/17
• 171.5.0.0/17
• 171.5.0.0/16
• 171.5.128.0/17

Peering ecosystem

2 distinct peers via BGP. The first 2 are listed below.

Blast radius

Approximate count of dependent hostnames if AS17166 disappeared from the routing table.

~1,119 hostnames depend on this network.Sampled from 10 prefixes, snapshot Wed, 20 May 2026 21:54:33 GMT.

MOAS / hijack watch

Prefixes routed by AS17166 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 AS17166 is unique to AS17166 in the current routing snapshot.

Threat posture

Related pages

Pivot deeper into the graph from AS17166.

• Country · US
• Peer · UUNET - Verizon BusinessAS701
• Prefix · 12.191.50.0/23
• Live MOAS conflicts feed
• Threat feed · Spamhaus DROP
• Whisper Internet Directory — home

Cypher and MCP

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

MATCH (a:ASN {name: "AS17166"})-[: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.