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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
58
Total IPv6 Prefixes
22
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#2,692 out of 79,306
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
AS7922
US flagComcast Cable Communications, LLC
AS3356
US flagLevel 3 Parent, LLC
AS174
US flagCogent Communications, LLC
AS3257
US flagGTT Communications Inc.
AS55836
IN flagReliance Jio Infocomm Limited
Showing 5 of 19
Transit To
ASN
Organisation
AS14956
US flagRouterHosting LLC
AS2635
US flagAutomattic, Inc
AS400536
US flagNodestop LLC
AS29844
US flagSena Wave LLC
AS399282
US flagConnext LLC
Showing 5 of 9
IPv4 Active Prefixes
PrefixRange FromRange To
43.240.64.0/2443.240.64.043.240.64.255
104.156.142.0/24104.156.142.0104.156.142.255
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
Showing 5 of 58
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