AS4657 — STARHUB-INTERNET StarHub Ltd(SG)

Nutrition Label

Routing footprint

AS4657 announces 181 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.

• 23.211.56.0/22
• 23.216.146.0/24
• 27.62.176.0/22
• 27.62.188.0/22
• 38.50.105.0/24
• 38.50.106.0/24
• 39.135.57.0/24
• 43.240.2.0/24
• 45.70.108.0/24
• 61.39.28.0/24
• 61.39.29.0/24
• 61.39.37.128/25
• 61.39.49.0/24
• 61.39.61.0/24
• 61.39.170.0/24
• 61.39.179.128/27
• 61.39.183.32/27
• 102.17.240.0/21
• 102.18.26.0/24
• 102.18.32.0/24
• 103.28.18.0/23
• 103.43.56.0/24
• 103.157.169.0/24
• 104.128.136.0/24
• 104.128.137.0/24

Peering ecosystem

140 distinct peers via BGP. The first 140 are listed below.

Blast radius

Approximate count of dependent hostnames if AS4657 disappeared from the routing table.

~10,806 hostnames depend on this network.Sampled from 10 prefixes, snapshot Wed, 20 May 2026 21:52:38 GMT.

MOAS / hijack watch

Prefixes routed by AS4657 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 AS4657 is unique to AS4657 in the current routing snapshot.

Threat posture

Related pages

Pivot deeper into the graph from AS4657.

• Country · SG
• Peer · CISCOSYSTEMS - CISCO SYSTEMS, INC.AS109
• Prefix · 23.211.56.0/22
• 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: "AS4657"})-[: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.