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ASN Lookup Tool
AS21687 AS21687

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS21687
Organisation
Crown Castle Fiber LLC
Name
AS21687
Total IPv4 Addresses
0
Total IPv4 Prefixes
0
Total IPv6 Prefixes
185
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
2001-06-08
Registration Last Change
2024-01-03
Receiving From

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

ASN
Organisation
AS3356
US flagLevel 3 Parent, LLC
AS6461
US flagZayo Bandwidth
AS46887
US flagCrown Castle Fiber LLC
AS1299
SE flagArelion Sweden AB
IPv6 Active Prefixes
PrefixRange FromRange To
2605:a900:3000::54/1282605:a900:3000::542605:a900:3000::54
2607:f518:1:203::2/1282607:f518:1:203::22607:f518:1:203::2
2607:f518:1:203::3/1282607:f518:1:203::32607:f518:1:203::3
2607:f7a8::/1282607:f7a8::2607:f7a8::
2607:f7a8::1/1282607:f7a8::12607:f7a8::1
Showing 5 of 185