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ASN Lookup Tool
AS7018 ATT-INTERNET4

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS7018
Organisation
AT&T Enterprises, LLC
Name
ATT-INTERNET4
Total IPv4 Addresses
89,347,084
Total IPv4 Prefixes
8,833
Total IPv6 Prefixes
239
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#4 out of 79,095
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
1996-07-30
Registration Last Change
2025-03-18
Receiving From
ASN
Organisation
AS22850
US flagPIT US
AS7922
US flagComcast Cable Communications, LLC
AS701
US flagVerizon Business
AS3320
DE flagDeutsche Telekom AG
AS3356
US flagLevel 3 Parent, LLC
Showing 5 of 136
Transit To
ASN
Organisation
AS398282
WORLD flagPrivate Use AS
AS394402
WORLD flagPrivate Use AS
AS11969
WORLD flagPrivate Use AS
AS395350
WORLD flagPrivate Use AS
AS4220000048
WORLD flagPrivate Use AS
Showing 5 of 2850
IPv4 Active Prefixes
PrefixRange FromRange To
12.0.4.0/2212.0.4.012.0.7.255
12.0.8.0/2112.0.8.012.0.15.255
12.0.16.0/2012.0.16.012.0.31.255
12.0.32.0/1912.0.32.012.0.63.255
12.0.64.0/2112.0.64.012.0.71.255
Showing 5 of 8,833
IPv6 Active Prefixes
PrefixRange FromRange To
2001:1890::/762001:1890::2001:1890::f:ffff:ffff:ffff
2001:1890:0:0:10::/792001:1890:0:0:10::2001:1890::11:ffff:ffff:ffff
2001:1890:0:0:12::/882001:1890:0:0:12::2001:1890::12:ff:ffff:ffff
2001:1890::12:100:0:0/912001:1890::12:100:0:02001:1890::12:11f:ffff:ffff
2001:1890::12:120:0:0/942001:1890::12:120:0:02001:1890::12:123:ffff:ffff
Showing 5 of 239