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ASN Lookup Tool
AS4991 COGENT-4991-4994

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS4991
Organisation
Cogent Communications, LLC
Name
COGENT-4991-4994
Total IPv4 Addresses
16,384
Total IPv4 Prefixes
1
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#7,393 out of 79,056
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
1995-05-31
Registration Last Change
2025-09-23
Receiving From
ASN
Organisation
AS54054
US flagDeteque
IPv4 Active Prefixes
PrefixRange FromRange To
204.6.192.0/18204.6.192.0204.6.255.255