Report for 4323

Name

CENTURYLINK-LEGACY-TWTC - Level 3 Parent, 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.

4323 CENTURYLINK-LEGACY-TWTC - Level 3 Parent, LLC, US

  Adjacency:     5  Upstream:     1  Downstream:     4
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
  Downstream Adjacent AS list
    AS36573         WXII-TV - Hearst-Argyle Television, Inc., US
    AS19972         AS19972 - CommScope Technologies LLC., US
    AS27356         PCCU-ASN-207-SUBNET - Park Community Credit Union, Inc., US
    AS21950         AUTOTEC - AutoTec LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
78056 AS4323         TRANSIT Originate:          0 /0.00   Transit:       1280 /21.68 CENTURYLINK-LEGACY-TWTC - Level 3 Parent, LLC, US

Whois Entry

whois: 402549

IANA has recorded AS4323 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS4323\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:       4323
             ASName:         CENTURYLINK-LEGACY-TWTC
             ASHandle:       AS4323
             RegDate:        1995-02-01
             Updated:        2022-03-23
             Ref:            https://rdap.arin.net/registry/autnum/4323
             
             
             
             OrgName:        Level 3 Parent, LLC
             OrgId:          LPL-141
             Address:        100 CenturyLink Drive
             City:           Monroe
             StateProv:      LA
             PostalCode:     71203
             Country:        US
             RegDate:        2018-02-06
             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/LPL-141
             
             
             OrgAbuseHandle: LAC56-ARIN
             OrgAbuseName:   L3 Abuse Contact
             OrgAbusePhone:  +1-877-453-8353 
             OrgAbuseEmail:  abuse@level3.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/LAC56-ARIN
             
             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
             
             OrgTechHandle: APL7-ARIN
             OrgTechName:   ADMIN POC LVLT
             OrgTechPhone:  +1-877-453-8353 
             OrgTechEmail:  ipadmin@centurylink.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/APL7-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.
             #