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ASN Lookup Tool
AS209 CENTURYLINK-US-LEGACY-QWEST

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS209
Organisation
CenturyLink Communications, LLC
Name
CENTURYLINK-US-LEGACY-QWEST
Total IPv4 Addresses
15173711
Total IPv4 Prefixes
5952
Total IPv6 Prefixes
326
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#29 out of 76,423
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1998-11-13
Registration Last Change
2018-10-04
Receiving From

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

ASN
Organisation
AS7018
US flagAT&T Services, Inc.
AS3356
US flagLevel 3 Parent, LLC
AS209
US flagCenturyLink Communications, LLC
AS3561
US flagCenturyLink Communications, LLC
AS33652
US flagComcast Cable Communications, LLC
Showing 5 of 24
Transit To

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

 

ASN
Organisation
AS4297
US flagCenturyLink Communications, LLC
AS53692
US flagInterop Show Network
AS7018
US flagAT&T Services, Inc.
AS701
US flagVerizon Business
AS721
US flagDoD Network Information Center
Showing 5 of 964
IPv4 Active Prefixes

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

Prefix8.3.97.0/24
Range From8.3.97.0
Range To8.3.97.255
Prefix8.15.5.0/24
Range From8.15.5.0
Range To8.15.5.255
Prefix8.17.251.0/24
Range From8.17.251.0
Range To8.17.251.255
Prefix8.17.252.0/24
Range From8.17.252.0
Range To8.17.252.255
Prefix23.149.32.0/24
Range From23.149.32.0
Range To23.149.32.255
Showing 5 of 5952
IPv6 Active Prefixes
Prefix2001:428::/37
Range From2001:428::
Range To2001:428:7ff:ffff:ffff:ffff:ffff:ffff
Prefix2001:428:800::/39
Range From2001:428:800::
Range To2001:428:9ff:ffff:ffff:ffff:ffff:ffff
Prefix2001:428:a00::/40
Range From2001:428:a00::
Range To2001:428:aff:ffff:ffff:ffff:ffff:ffff
Prefix2001:428:b00::/43
Range From2001:428:b00::
Range To2001:428:b1f:ffff:ffff:ffff:ffff:ffff
Prefix2001:428:b22::/47
Range From2001:428:b22::
Range To2001:428:b23:ffff:ffff:ffff:ffff:ffff
Showing 5 of 326
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.