AS3491 — PCCWG-APAC-HK - PCCW Global (HK) Ltd.(HK)

Nutrition Label

Routing footprint

AS3491 announces 577 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

• 31.59.78.0/24
• 41.79.245.0/24
• 41.79.244.0/22
• 41.79.248.0/24
• 41.79.249.0/24
• 41.79.248.0/22
• 41.79.250.0/24
• 41.221.208.0/24
• 41.221.208.0/20
• 41.221.216.0/24
• 41.221.217.0/24
• 41.221.216.0/22
• 43.230.86.0/23
• 45.195.74.0/24
• 49.128.209.0/24
• 49.128.212.0/24
• 63.216.14.0/24
• 63.216.35.0/24
• 63.216.48.0/21
• 63.216.56.0/21
• 63.216.82.0/23
• 63.216.140.0/24
• 63.216.142.0/23
• 63.216.144.0/22
• 63.216.149.0/24

Peering ecosystem

577 distinct peers via BGP. The first 200 (alphabetical) are listed below.

Blast radius

Count of dependent hostnames if AS3491 disappeared from the routing table.

≥32,320 hostnames depend on this network.Verified lower bound — counted across 50 of 374 announced prefixes. The true total is at least this many. Snapshot Thu, 06 Aug 2026 10:00:56 GMT.

MOAS / hijack watch

Prefixes routed by AS3491 that another Autonomous System also announces. A non-empty list is one of the strongest BGP-hijack signals available without active probes.

Threat posture

Related pages

Pivot deeper into the graph from AS3491.

• Country · HK
• Peer · HENDERSON-HK - Towngas Telecommunications Fixed Network LtdAS10098
• Prefix · 31.59.78.0/24
• Live MOAS conflicts feed
• Threat feed · Spamhaus DROP
• Browse this ASN range · 3000-3999
• Glossary · What is BGP?
• Whisper Internet Directory — home

Cypher and MCP

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

MATCH (a:ASN {name: "AS3491"})-[: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.