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ASN Lookup Tool
AS13979 ATT-IPFR

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS13979
Organisation
AT&T Services, Inc.
Name
ATT-IPFR
Total IPv4 Addresses
115,838
Total IPv4 Prefixes
161
Total IPv6 Prefixes
100
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,771 out of 77,675
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1999-09-28
Registration Last Change
2012-03-02
Receiving From

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

ASN
Organisation
AS4151
US flagUSDA
AS7018
US flagAT&T Services, Inc.
AS174
US flagCogent Communications
AS36149
US flagHawaiian Telcom Services Company, Inc.
AS3477
US flagNational Oceanic and Atmospheric Administration
Showing 5 of 8
Transit To

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

 

ASN
Organisation
AS65000
WORLD flagPrivate Use AS
AS2576
US flagU. S. Department of Transportation
AS14298
US flagEnvironmental Protection Agency
AS7764
US flagNational Oceanic and Atmospheric Administration
AS8076
US flagHousing and Urban Development
Showing 5 of 6
IPv4 Active Prefixes

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

Prefix15.0.65.0/24
Range From15.0.65.0
Range To15.0.65.255
Prefix15.0.66.0/23
Range From15.0.66.0
Range To15.0.67.255
Prefix15.0.68.0/22
Range From15.0.68.0
Range To15.0.71.255
Prefix15.0.72.0/21
Range From15.0.72.0
Range To15.0.79.255
Prefix15.0.80.0/20
Range From15.0.80.0
Range To15.0.95.255
Showing 5 of 161
IPv6 Active Prefixes
Prefix2600:381:3900::/40
Range From2600:381:3900::
Range To2600:381:39ff:ffff:ffff:ffff:ffff:ffff
Prefix2600:387:14::/48
Range From2600:387:14::
Range To2600:387:14:ffff:ffff:ffff:ffff:ffff
Prefix2606:ae00:4200::/43
Range From2606:ae00:4200::
Range To2606:ae00:421f:ffff:ffff:ffff:ffff:ffff
Prefix2606:ae00:4340::/44
Range From2606:ae00:4340::
Range To2606:ae00:434f:ffff:ffff:ffff:ffff:ffff
Prefix2606:ae00:4350::/44
Range From2606:ae00:4350::
Range To2606:ae00:435f:ffff:ffff:ffff:ffff:ffff
Showing 5 of 100
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.