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ASN Lookup Tool
AS6431 ATT-RESEARCH

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS6431
Organisation
AT&T Enterprises, LLC
Name
ATT-RESEARCH
Total IPv4 Addresses
202,240
Total IPv4 Prefixes
13
Total IPv6 Prefixes
14
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,119 out of 79,050
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1996-04-12
Registration Last Change
2025-03-18
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS7018
US flagAT&T Enterprises, LLC
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix12.106.32.0/23
Range From12.106.32.0
Range To12.106.33.255
Prefix12.106.34.0/24
Range From12.106.34.0
Range To12.106.34.255
Prefix12.106.35.0/24
Range From12.106.35.0
Range To12.106.35.255
Prefix135.197.0.0/17
Range From135.197.0.0
Range To135.197.127.255
Prefix135.197.128.0/17
Range From135.197.128.0
Range To135.197.255.255
Showing 5 of 13
IPv6 Active Prefixes
Prefix2620:0:f00::/48
Range From2620:0:f00::
Range To2620:0:f00:ffff:ffff:ffff:ffff:ffff
Prefix2620:0:f01::/48
Range From2620:0:f01::
Range To2620:0:f01:ffff:ffff:ffff:ffff:ffff
Prefix2620:0:f02::/47
Range From2620:0:f02::
Range To2620:0:f03:ffff:ffff:ffff:ffff:ffff
Prefix2620:0:f04::/46
Range From2620:0:f04::
Range To2620:0:f07:ffff:ffff:ffff:ffff:ffff
Prefix2620:0:f08::/45
Range From2620:0:f08::
Range To2620:0:f0f:ffff:ffff:ffff:ffff:ffff
Showing 5 of 14