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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 Services, Inc.
Name
ATT-INTERNET4
Total IPv4 Addresses
92,679,808
Total IPv4 Prefixes
11,147
Total IPv6 Prefixes
197
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#3 out of 77,669
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1996-07-30
Registration Last Change
2012-04-02
Receiving From

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

ASN
Organisation
AS33891
DE flagCore-Backbone GmbH
AS7922
US flagComcast Cable Communications, LLC
AS701
US flagVerizon Business
AS3320
DE flagDeutsche Telekom AG
AS3356
US flagLevel 3 Parent, LLC
Showing 5 of 133
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
AS151673
CN flagChen Xinyu
AS4294967033
WORLD flagPrivate Use AS
AS4294967034
WORLD flagPrivate Use AS
AS4294967262
WORLD flagPrivate Use AS
AS4216200021
WORLD flagPrivate Use AS
Showing 5 of 2804
IPv4 Active Prefixes

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

Prefix5.182.114.0/24
Range From5.182.114.0
Range To5.182.114.255
Prefix5.182.186.0/24
Range From5.182.186.0
Range To5.182.186.255
Prefix5.182.187.0/24
Range From5.182.187.0
Range To5.182.187.255
Prefix5.182.193.0/24
Range From5.182.193.0
Range To5.182.193.255
Prefix5.182.194.0/24
Range From5.182.194.0
Range To5.182.194.255
Showing 5 of 11,147
IPv6 Active Prefixes
Prefix2001:1890::/36
Range From2001:1890::
Range To2001:1890:fff:ffff:ffff:ffff:ffff:ffff
Prefix2001:1890:1000::/37
Range From2001:1890:1000::
Range To2001:1890:17ff:ffff:ffff:ffff:ffff:ffff
Prefix2001:1890:1800::/38
Range From2001:1890:1800::
Range To2001:1890:1bff:ffff:ffff:ffff:ffff:ffff
Prefix2001:1890:1c00::/39
Range From2001:1890:1c00::
Range To2001:1890:1dff:ffff:ffff:ffff:ffff:ffff
Prefix2001:1890:1e00::/40
Range From2001:1890:1e00::
Range To2001:1890:1eff:ffff:ffff:ffff:ffff:ffff
Showing 5 of 197
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.