Report for 14921

Name

CENTURYLINK-LEGACY-EMBARQ-HDRV - CenturyLink Communications, LLC, US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS2.0) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

14921 CENTURYLINK-LEGACY-EMBARQ-HDRV - CenturyLink Communications, LLC, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS209           CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
3975  AS14921        ORIGIN  Originate:      61952 /16.08  Transit:          0 /0.00  CENTURYLINK-LEGACY-EMBARQ-HDRV - CenturyLink Communications, LLC, US

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
 7204 AS14921       CENTURYLINK-LEGACY-EMBARQ-HDRV - CenturyLink      34     11      5     28      6  17.65%


  Prefix               AS Path                              Aggregation Suggestion
  63.165.119.0/24      4777 2516 3356 209 14921   
  65.40.176.0/21       4777 2516 3356 209 14921   
  65.40.220.0/22       4777 2516 3356 209 14921   
  65.40.224.0/22       4777 2516 3356 209 14921   
  67.76.144.0/21       4777 2516 3356 209 14921   
  67.232.160.0/21      4777 2516 3356 209 14921   
  67.235.48.0/22       4777 2516 3356 209 14921 + Announce - aggregate of 67.235.48.0/23 (4777 2516 3356 209 14921) and 67.235.50.0/23 (4777 2516 3356 209 14921)
  67.235.48.0/23       4777 2516 3356 209 14921 - Withdrawn - aggregated with 67.235.50.0/23 (4777 2516 3356 209 14921)
  67.235.50.0/23       4777 2516 3356 209 14921 - Withdrawn - aggregated with 67.235.48.0/23 (4777 2516 3356 209 14921)
  67.237.96.0/20       4777 2516 3356 209 14921   
  67.237.132.0/22      4777 2516 3356 209 14921   
  67.237.136.0/21      4777 2516 3356 209 14921 + Announce - aggregate of 67.237.136.0/22 (4777 2516 3356 209 14921) and 67.237.140.0/22 (4777 2516 3356 209 14921)
  67.237.136.0/22      4777 2516 3356 209 14921 - Withdrawn - aggregated with 67.237.140.0/22 (4777 2516 3356 209 14921)
  67.237.140.0/22      4777 2516 3356 209 14921 - Withdrawn - aggregated with 67.237.136.0/22 (4777 2516 3356 209 14921)
  67.237.224.0/19      4777 2516 3356 209 14921   
  69.34.216.0/22       4777 2516 3356 209 14921   
  69.68.252.0/22       4777 2516 3356 209 14921   
  69.69.94.0/23        4777 2516 3356 209 14921   
  71.0.48.0/21         4777 2516 3356 209 14921   
  71.1.128.0/21        4777 2516 3356 209 14921 + Announce - aggregate of 71.1.128.0/22 (4777 2516 3356 209 14921) and 71.1.132.0/22 (4777 2516 3356 209 14921)
  71.1.128.0/22        4777 2516 3356 209 14921 - Withdrawn - aggregated with 71.1.132.0/22 (4777 2516 3356 209 14921)
  71.1.132.0/22        4777 2516 3356 209 14921 - Withdrawn - aggregated with 71.1.128.0/22 (4777 2516 3356 209 14921)
  71.2.216.0/22        4777 2516 3356 209 14921   
  71.48.176.0/21       4777 2516 3356 209 14921   
  71.50.0.0/20         4777 2516 3356 209 14921   
  71.53.64.0/20        4777 2516 3356 209 14921 + Announce - aggregate of 71.53.64.0/21 (4777 2516 3356 209 14921) and 71.53.72.0/21 (4777 2516 3356 209 14921)
  71.53.64.0/21        4777 2516 3356 209 14921 - Withdrawn - aggregated with 71.53.72.0/21 (4777 2516 3356 209 14921)
  71.53.72.0/21        4777 2516 3356 209 14921 - Withdrawn - aggregated with 71.53.64.0/21 (4777 2516 3356 209 14921)
  74.4.176.0/21        4777 2516 3356 209 14921   
  76.2.0.0/19          4777 2516 3356 209 14921 + Announce - aggregate of 76.2.0.0/20 (4777 2516 3356 209 14921) and 76.2.16.0/20 (4777 2516 3356 209 14921)
  76.2.0.0/20          4777 2516 3356 209 14921 - Withdrawn - aggregated with 76.2.16.0/20 (4777 2516 3356 209 14921)
  76.2.16.0/21         4777 2516 3356 209 14921 - Withdrawn - aggregated with 76.2.24.0/21 (4777 2516 3356 209 14921)
  76.2.24.0/21         4777 2516 3356 209 14921 - Withdrawn - aggregated with 76.2.16.0/21 (4777 2516 3356 209 14921)
  138.210.78.0/23      4777 2516 3356 209 14921   
  138.210.82.0/24      4777 2516 3356 209 14921   
  138.210.120.0/22     4777 2516 3356 209 14921   
  138.210.128.0/22     4777 2516 3356 209 14921   
  138.210.168.0/21     4777 2516 3356 209 14921   
  205.162.192.0/20     4777 2516 3356 209 14921   

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS14921   34 More Specifics   34 Total Advertisements   CENTURYLINK-LEGACY-EMBARQ-HDRV - CenturyLink Communications, LLC, US
    63.165.119.0/24               63.160.0.0/12
    65.40.176.0/21                65.40.0.0/15
    65.40.220.0/22                65.40.0.0/15
    65.40.224.0/22                65.40.0.0/15
    67.76.144.0/21                67.76.0.0/15
    67.232.160.0/21               67.232.0.0/13
    67.235.48.0/23                67.232.0.0/13
    67.235.50.0/23                67.232.0.0/13
    67.237.96.0/20                67.232.0.0/13
    67.237.132.0/22               67.232.0.0/13
    67.237.136.0/22               67.232.0.0/13
    67.237.140.0/22               67.232.0.0/13
    67.237.224.0/19               67.232.0.0/13
    69.34.216.0/22                69.34.0.0/16
    69.68.252.0/22                69.68.0.0/15
    69.69.94.0/23                 69.68.0.0/15
    71.0.48.0/21                  71.0.0.0/14
    71.1.128.0/22                 71.0.0.0/14
    71.1.132.0/22                 71.0.0.0/14
    71.2.216.0/22                 71.0.0.0/14
    71.48.176.0/21                71.48.0.0/13
    71.50.0.0/20                  71.48.0.0/13
    71.53.64.0/21                 71.48.0.0/13
    71.53.72.0/21                 71.48.0.0/13
    74.4.176.0/21                 74.4.0.0/15
    76.2.0.0/20                   76.0.0.0/13
    76.2.16.0/21                  76.0.0.0/13
    76.2.24.0/21                  76.0.0.0/13
    138.210.78.0/23               138.210.0.0/16
    138.210.82.0/24               138.210.0.0/16
    138.210.120.0/22              138.210.0.0/16
    138.210.128.0/22              138.210.0.0/16
    138.210.168.0/21              138.210.0.0/16
    205.162.192.0/20              205.160.0.0/14

Whois Entry

whois: 402603

IANA has recorded AS14921 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS14921\n             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #
             
             
             ASNumber:       14921
             ASName:         CENTURYLINK-LEGACY-EMBARQ-HDRV
             ASHandle:       AS14921
             RegDate:        2006-09-29
             Updated:        2018-08-14
             Ref:            https://rdap.arin.net/registry/autnum/14921
             
             
             OrgName:        CenturyLink Communications, LLC
             OrgId:          CCL-534
             Address:        100 CENTURYLINK DR
             City:           Monroe
             StateProv:      LA
             PostalCode:     71201
             Country:        US
             RegDate:        2018-07-12
             Updated:        2026-04-22
             Comment:        USAGE OF IP SPACE MUST COMPLY WITH OUR ACCEPTABLE USE POLICY:
             Comment:        https://www.lumen.com/en-us/about/legal/acceptable-use-policy.html
             Comment:        
             Comment:        ADDRESSES COVERED BY THIS ORG-ID ARE NON-PORTABLE ANY ISP ANNOUNCING OR TRANSITING PORTIONS WITHIN OUR RANGES SHOULD NOT RELY ON PRESENTED LOA'S OR OLD WHOIS UNLESS THOSE RANGES ARE ALSO ACTIVELY DIRECTLY ANNOUNCED TO A LUMEN ASN. WITH ALL LOA'S THESE CONDITIONS APPLY:
             Comment:        
             Comment:        1. You are permitted to route the Lumen IP prefixes listed via Public BGP to your alternate ISP from the designated ASN. Any other ASN originating the prefix listed is forbidden.
             Comment:        2. The Lumen IP prefixes listed can be routed via Public BGP to your alternate ISP as long as you remain an active customer with Lumen and continue to route the prefixes over at least one Lumen Internet circuit without significant traffic engineering.
             Comment:        3. Should your Internet services with Lumen be discontinued, Lumen reserves the right to have your alternate ISP terminate the routing of the Lumen IP prefixes without advanced notification, should you fail to do so.
             Comment:        4. All IP Addresses assigned or allocated by Lumen to an end-user (customer or ISP) shall be considered non-portable and will be reclaimed by Lumen upon service termination.
             Comment:        5. Lumen reserves the right to conduct audits to ensure the LOA conditions are being met.
             Comment:        6. Usage of IP space must comply with our AUP https://www.lumen.com/en-us/about/legal/acceptable-use-policy.html
             Comment:        
             Comment:        Our looking glass is located at: https://lookingglass.centurylink.com/
             Comment:        
             Comment:        For subpoena or court order please fax 844.254.5800 or refer to our Trust & Safety page:
             Comment:        https://www.lumen.com/en-us/about/legal/trust-center/trust-and-safety.html
             Comment:        
             Comment:        For abuse issues, please email abuse@aup.lumen.com
             Comment:        All abuse reports MUST include:
             Comment:        * src IP
             Comment:        * dest IP (your IP)
             Comment:        * dest port
             Comment:        * Accurate date/timestamp and timezone of activity
             Comment:        * Intensity/frequency (short log extracts)
             Comment:        * Your contact details (phone and email)
             Comment:        Without these we will be unable to identify the correct owner of the IP address at that point in time.
             Ref:            https://rdap.arin.net/registry/entity/CCL-534
             
             
             OrgRoutingHandle: RPKIR-ARIN
             OrgRoutingName:   RPKI-ROA
             OrgRoutingPhone:  +1-877-886-6515 
             OrgRoutingEmail:  rpki-roa@lumen.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/RPKIR-ARIN
             
             OrgAbuseHandle: CAD54-ARIN
             OrgAbuseName:   Centurylink Abuse Desk
             OrgAbusePhone:  +1-877-886-6515 
             OrgAbuseEmail:  abuse@aup.lumen.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/CAD54-ARIN
             
             OrgTechHandle: QIA-ARIN
             OrgTechName:   Centurylink IP Admin
             OrgTechPhone:  +1-877-886-6515 
             OrgTechEmail:  ipadmin@centurylink.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/QIA-ARIN
             
             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #