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ASN Lookup Tool
AS209 CENTURYLINK-US-LEGACY-QWEST

Powered By:
ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS209
Organisation
CenturyLink Communications, LLC
Name
CENTURYLINK-US-LEGACY-QWEST
Total IPv4 Addresses
15,247,172
Total IPv4 Prefixes
5,835
Total IPv6 Prefixes
241
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#28 out of 77,666
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
AS3561
US flagCenturyLink Communications, LLC
AS36236
US flagNetActuate, Inc
AS15164
US flagUnite Private Networks LLC.
Transit To

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

 

ASN
Organisation
AS53692
US flagInterop Show Network
AS7018
US flagAT&T Services, Inc.
AS701
US flagVerizon Business
AS3320
DE flagDeutsche Telekom AG
AS3356
US flagLevel 3 Parent, LLC
Showing 5 of 714
IPv4 Active Prefixes

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

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
Prefix24.223.60.0/24
Range From24.223.60.0
Range To24.223.60.255
Showing 5 of 5,835
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 241
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.