Autonomous System
AS21947 — BCI - Blackfoot Telephone Cooperative, Inc.(US)
Last fetched
AS21947 is an Autonomous System operated by BCI - Blackfoot Telephone Cooperative, Inc. and registered in US. As of Thu, 21 May 2026 06:24:05 GMT, it announces 17 routed IP prefixes and peers with 19 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS21947 announces 17 distinct routed prefixes. The 17-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
Peering ecosystem
19 distinct peers via BGP. The first 19 are listed below.
| Peer ASN | Operator | Country |
|---|---|---|
| AS1299 | TWELVE99 Arelion, fka Telia Carrier | SE |
| AS398437 | HOT-SPRINGS-TEL-01 - Hot Springs Telephone Company | US |
| AS397162 | SUMOFIBER-IDAHO - Sumofiber | US |
| AS395861 | MIA - Medical Imaging Associates of Idaho Falls, Inc. | US |
| AS393630 | AVANTGUARD - Avantguard Monitoring Centers | US |
| AS54410 | BDHS-AS - Bozeman Deaconess Health Services | US |
| AS46324 | ADVANCED-STREAM-01 - Advanced Stream Inc. | US |
| AS33521 | MISSOULA-COUNTY-PUBLIC-SCHOOLS - Missoula County Public Schools | US |
| AS33281 | BRIGHAM-YOUNG-UNIVERSITY-IDAHO - BRIGHAM YOUNG UNIVERSITY - IDAHO | US |
| AS27391 | WASHCORP-AS1 - Washington Corporations | US |
| AS22785 | GLACIER-BANCORP-INC - GLACIER BANCORP INC | US |
| AS20274 | FVCC-AS - Flathead Valley Community College | US |
| AS15331 | BCI-LAB - Blackfoot Telephone Cooperative, Inc. | US |
| AS15305 | SYRINGANETWORKS - Syringa Networks, LLC | US |
| AS13590 | MDMH - Marcus Daly Memorial Hospital Corporation | US |
| AS9002 | RETN-AS | GB |
| AS6939 | HURRICANE - Hurricane Electric LLC | US |
| AS2914 | NTT-DATA-2914 - NTT America, Inc. | US |
| AS1378 | IBEL - Interbel Telephone Cooperative, Inc. | US |
Blast radius
Approximate count of dependent hostnames if AS21947 disappeared from the routing table.
~1,471 hostnames depend on this network.Sampled from 10 prefixes, snapshot Thu, 21 May 2026 06:24:05 GMT.
MOAS / hijack watch
Prefixes routed by AS21947 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 AS21947 is unique to AS21947 in the current routing snapshot.
Threat posture
Related pages
Pivot deeper into the graph from AS21947.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS21947"})-[: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.