ASN Lookup Tool
AS21557 CYB-BLK-1

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS21557
Organisation
Cybernet Communications, Inc.
Name
CYB-BLK-1
Total IPv4 Addresses
12,800
Total IPv4 Prefixes
39
Total IPv6 Prefixes
12
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#8,276 out of 79,050
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
2006-12-07
Registration Last Change
2012-03-02
Receiving From

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

ASN
Organisation
US flagCogent Communications
US flagZayo Bandwidth
US flagHurricane Electric LLC
IPv4 Active Prefixes

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

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