ASN Lookup Tool
AS209 CenturyLink Communications, LLC
An 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.
ASN Lookup for:
AS209
Powered By:ASN Details
ASN
AS209
Organisation
CenturyLink Communications, LLC
AS Name
CENTURYLINK-US-LEGACY-QWEST
IPv4 Addresses Announced
17,663,197
IPv4 Prefixes Announced
6,697
IPv6 Prefixes Announced
575
IPv4 Bogon Prefixes
0
IPv6 Bogon Prefixes
0
IPv4 Space Rank
#24 out of 75,559
Registry
Arin
Registered Country
US
Registration Date
1998-11-13
Registration Change
2018-10-04
Receiving From
ASN
Organisation
AT&T Services, Inc.
Level 3 Parent, LLC
Comcast Cable Communications, LLC
Cogent Communications
KDDI CORPORATION
CenturyLink Communications, LLC
Sprint
Telstra Corporation Limited
Vodafone GmbH
TELEFÔNICA BRASIL S.A
Showing 10 of 91 Results View More >
Transit To
ASN
Organisation
CenturyLink Communications, LLC
Interop Show Network
CenturyLink Communications, LLC
AT&T Services, Inc.
DoD Network Information Center
Verizon Business
Verizon Business
Level 3 Parent, LLC
Verizon Business
CenturyLink Communications, LLC
Showing 10 of 1,164 Results View More >
Active Prefixes IPv6
Prefix
Range From
Range To
Prefix
2001:428:1000::/38
Range From
2001:428:1000::
Prefix
2001:428:1400::/47
Range From
2001:428:1400::
Prefix
2001:428:1402:100::/63
Range From
2001:428:1402:100::
Prefix
2001:428:1402:1000::/52
Range From
2001:428:1402:1000::
Prefix
2001:428:1402:102::/64
Range From
2001:428:1402:102::
Prefix
2001:428:1402:104::/62
Range From
2001:428:1402:104::
Prefix
2001:428:1402:108::/61
Range From
2001:428:1402:108::
Prefix
2001:428:1402:110::/60
Range From
2001:428:1402:110::
Showing 10 of 575 Results View More >