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ASN Lookup Tool
AS20057 ATT-MOBILITY-LLC-AS20057

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS20057
Organisation
AT&T Enterprises, LLC
Name
ATT-MOBILITY-LLC-AS20057
Total IPv4 Addresses
4,049,664
Total IPv4 Prefixes
2,128
Total IPv6 Prefixes
196
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#125 out of 79,139
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
Registration Last Change
2025-03-18
Receiving From
ASN
Organisation
AS7018
US flagAT&T Enterprises, LLC
AS15830
NL flagEquinix (EMEA) Acquisition Enterprises B.V.
AS60068
GB flagDatacamp Limited
AS54825
US flagPacket Host, Inc.
AS51847
HK flagNearoute Limited
Transit To
ASN
Organisation
AS64011
WORLD flagPrivate Use AS
IPv4 Active Prefixes
PrefixRange FromRange To
12.72.0.0/1912.72.0.012.72.31.255
12.72.32.0/2112.72.32.012.72.39.255
12.72.40.0/2112.72.40.012.72.47.255
12.72.48.0/2112.72.48.012.72.55.255
12.72.56.0/2112.72.56.012.72.63.255
Showing 5 of 2,128
IPv6 Active Prefixes
PrefixRange FromRange To
2600:380::/402600:380::2600:380:ff:ffff:ffff:ffff:ffff:ffff
2600:380:100::/412600:380:100::2600:380:17f:ffff:ffff:ffff:ffff:ffff
2600:380:180::/412600:380:180::2600:380:1ff:ffff:ffff:ffff:ffff:ffff
2600:380:200::/392600:380:200::2600:380:3ff:ffff:ffff:ffff:ffff:ffff
2600:380:400::/382600:380:400::2600:380:7ff:ffff:ffff:ffff:ffff:ffff
Showing 5 of 196