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ASN Lookup Tool
AS4 ISI-AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS4
Organisation
University of Southern California
Name
ISI-AS
Total IPv4 Addresses
67,328
Total IPv4 Prefixes
57
Total IPv6 Prefixes
22
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#2,713 out of 79,130
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
Registration Last Change
2023-09-29
Receiving From
ASN
Organisation
AS174
US flagCogent Communications, LLC
AS55836
IN flagReliance Jio Infocomm Limited
AS6057
UY flagANTEL AS 6057
AS9498
IN flagBharti Airtel Limited
AS4755
IN flagTata Communications Limited
Showing 5 of 27
Transit To
ASN
Organisation
AS2635
US flagAutomattic, Inc
IPv4 Active Prefixes
PrefixRange FromRange To
43.240.64.0/2443.240.64.043.240.64.255
128.9.0.0/20128.9.0.0128.9.15.255
128.9.16.0/24128.9.16.0128.9.16.255
128.9.17.0/24128.9.17.0128.9.17.255
128.9.18.0/24128.9.18.0128.9.18.255
Showing 5 of 57
IPv6 Active Prefixes
PrefixRange FromRange To
2001:500:202::/482001:500:202::2001:500:202:ffff:ffff:ffff:ffff:ffff
2001:1878:401::/482001:1878:401::2001:1878:401:ffff:ffff:ffff:ffff:ffff
2001:1878:402::/482001:1878:402::2001:1878:402:ffff:ffff:ffff:ffff:ffff
2001:1878:403::/482001:1878:403::2001:1878:403:ffff:ffff:ffff:ffff:ffff
2001:1878:404::/482001:1878:404::2001:1878:404:ffff:ffff:ffff:ffff:ffff
Showing 5 of 22