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ASN Lookup Tool
AS2576 DOT-AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS2576
Organisation
U. S. Department of Transportation
Name
DOT-AS
Total IPv4 Addresses
268,800
Total IPv4 Prefixes
19
Total IPv6 Prefixes
32
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#881 out of 77,684
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1993-04-22
Registration Last Change
2005-03-02
Receiving From

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

ASN
Organisation
AS13979
US flagAT&T Services, Inc.
IPv4 Active Prefixes

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

Prefix152.119.0.0/16
Range From152.119.0.0
Range To152.119.255.255
Prefix152.120.0.0/16
Range From152.120.0.0
Range To152.120.255.255
Prefix152.122.0.0/16
Range From152.122.0.0
Range To152.122.255.255
Prefix169.135.0.0/16
Range From169.135.0.0
Range To169.135.255.255
Prefix199.79.176.0/24
Range From199.79.176.0
Range To199.79.176.255
Showing 5 of 19
IPv6 Active Prefixes
Prefix2001:19e8::/48
Range From2001:19e8::
Range To2001:19e8:0:ffff:ffff:ffff:ffff:ffff
Prefix2001:19e8:1::/48
Range From2001:19e8:1::
Range To2001:19e8:1:ffff:ffff:ffff:ffff:ffff
Prefix2001:19e8:2::/48
Range From2001:19e8:2::
Range To2001:19e8:2:ffff:ffff:ffff:ffff:ffff
Prefix2001:19e8:a::/48
Range From2001:19e8:a::
Range To2001:19e8:a:ffff:ffff:ffff:ffff:ffff
Prefix2001:19e8:d::/48
Range From2001:19e8:d::
Range To2001:19e8:d:ffff:ffff:ffff:ffff:ffff
Showing 5 of 32
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.