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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
70656
Total IPv4 Prefixes
31
Total IPv6 Prefixes
11
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#2,507 out of 77,224
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.
AS36351
US flagSoftLayer Technologies Inc.
AS4181
US flagTDS TELECOM
AS7575
AU flagAustralian Academic and Research Network
Showing 5 of 22
Transit To

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

 

ASN
Organisation
AS33281
US flagBRIGHAM YOUNG UNIVERSITY - IDAHO
AS18897
US flagMontana Sky Networks, Inc.
AS1378
US flagInterbel Telephone Cooperative, Inc.
AS397162
US flagSumofiber
AS27391
US flagWashington Corporations
Showing 5 of 16
IPv4 Active Prefixes

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

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
Prefix65.39.120.0/24
Range From65.39.120.0
Range To65.39.120.255
Showing 5 of 31
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.