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ASN Lookup Tool
AS21947 BCI

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS21947
Organisation
Blackfoot Telephone Cooperative, Inc.
Name
BCI
Total IPv4 Addresses
71,168
Total IPv4 Prefixes
33
Total IPv6 Prefixes
11
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#2,449 out of 78,225
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
2001-07-17
Registration Last Change
2013-07-22
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS2914
US flagNTT America, Inc.
AS852
CA flagTELUS Communications Inc.
AS4181
US flagTDS TELECOM
AS7575
AU flagAustralian Academic and Research Network
AS6939
US flagHurricane Electric LLC
Showing 5 of 19
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
AS33281
US flagBRIGHAM YOUNG UNIVERSITY - IDAHO
AS1378
US flagInterbel Telephone Cooperative, Inc.
AS397162
US flagSumofiber
AS27391
US flagWashington Corporations
AS395251
US flagBenefis Health System
Showing 5 of 14
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix23.178.40.0/24
Range From23.178.40.0
Range To23.178.40.255
Prefix64.25.128.0/23
Range From64.25.128.0
Range To64.25.129.255
Prefix64.25.131.0/24
Range From64.25.131.0
Range To64.25.131.255
Prefix64.25.132.0/22
Range From64.25.132.0
Range To64.25.135.255
Prefix64.25.136.0/21
Range From64.25.136.0
Range To64.25.143.255
Showing 5 of 33
IPv6 Active Prefixes
Prefix2001:1940::/36
Range From2001:1940::
Range To2001:1940:fff:ffff:ffff:ffff:ffff:ffff
Prefix2001:1940:1000::/37
Range From2001:1940:1000::
Range To2001:1940:17ff:ffff:ffff:ffff:ffff:ffff
Prefix2001:1940:1900::/40
Range From2001:1940:1900::
Range To2001:1940:19ff:ffff:ffff:ffff:ffff:ffff
Prefix2001:1940:1a00::/39
Range From2001:1940:1a00::
Range To2001:1940:1bff:ffff:ffff:ffff:ffff:ffff
Prefix2001:1940:1c00::/38
Range From2001:1940:1c00::
Range To2001:1940:1fff:ffff:ffff:ffff:ffff:ffff
Showing 5 of 11
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.