Autonomous System
AS109 — CISCOSYSTEMS - CISCO SYSTEMS, INC.(US)
Last fetched
AS109 is an Autonomous System operated by CISCOSYSTEMS - CISCO SYSTEMS, INC. and registered in US. As of Thu, 21 May 2026 11:00:43 GMT, it announces 136 routed IP prefixes and peers with 17 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS109 announces 136 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
- 12.5.186.0/23
- 12.19.88.0/21
- 12.159.148.0/22
- 64.100.0.0/16
- 64.101.0.0/18
- 64.101.64.0/18
- 64.101.96.0/19
- 64.101.128.0/18
- 64.101.192.0/19
- 64.101.224.0/19
- 64.102.0.0/16
- 64.102.249.0/24
- 64.103.40.0/21
- 64.103.48.0/21
- 64.103.0.0/17
- 64.103.64.0/19
- 64.103.96.0/20
- 64.103.0.0/16
- 64.103.128.0/17
- 64.104.0.0/18
- 64.104.64.0/19
- 64.104.96.0/19
- 64.104.124.0/24
- 64.104.0.0/16
- 64.104.128.0/19
Peering ecosystem
17 distinct peers via BGP. The first 17 are listed below.
| Peer ASN | Operator | Country |
|---|---|---|
| AS701 | UUNET - Verizon Business | US |
| AS17621 | CNCGROUP-SH China Unicom Shanghai network | CN |
| AS9498 | BBIL-AP BHARTI Airtel Ltd. | IN |
| AS8551 | BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbone | IL |
| AS7473 | SINGTEL-AS-AP Singapore Telecommunications Ltd | SG |
| AS7018 | ATT-INTERNET4 - AT&T Enterprises, LLC | US |
| AS6939 | HURRICANE - Hurricane Electric LLC | US |
| AS4812 | CHINANET-SH-AP China Telecom Group | CN |
| AS4755 | TATACOMM-AS TATA Communications formerly VSNL is Leading ISP | IN |
| AS4657 | STARHUB-INTERNET StarHub Ltd | SG |
| AS4637 | ASN-TELSTRA-GLOBAL Telstra Global | HK |
| AS3491 | PCCWG-APAC-HK PCCW Global HK Ltd. | HK |
| AS3356 | LEVEL3 - Level 3 Parent, LLC | US |
| AS2764 | AAPT AAPT Limited | AU |
| AS1680 | NV-ASN CELLCOM ltd. | IL |
| AS1299 | TWELVE99 Arelion, fka Telia Carrier | SE |
| AS1221 | ASN-TELSTRA Telstra Limited | AU |
Blast radius
Approximate count of dependent hostnames if AS109 disappeared from the routing table.
~38,216 hostnames depend on this network.Sampled from 10 prefixes, snapshot Thu, 21 May 2026 11:00:43 GMT.
MOAS / hijack watch
Prefixes routed by AS109 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 AS109 is unique to AS109 in the current routing snapshot.
Threat posture
Related pages
Pivot deeper into the graph from AS109.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS109"})-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (a)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN a.name AS asn, n.name AS operator, c.name AS countryOr query Whisper from your own LLM workflow via the Whisper MCP server.