Report for 4468

Name

EASYLINK4 - AT&T Enterprises, 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.

4468 EASYLINK4 - AT&T Enterprises, LLC, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS2687          ATGS-MMD-AS - AT&T Enterprises, LLC, US
    AS2686          ATGS-MMD-AS - AT&T Enterprises, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
29962 AS4468         ORIGIN  Originate:       1536 /21.42  Transit:          0 /0.00  EASYLINK4 - AT&T Enterprises, 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       %
20533 AS4468        EASYLINK4 - AT&T Enterprises, LLC, US              6      2      1      5      1  16.67%


  Prefix               AS Path                              Aggregation Suggestion
  204.127.240.0/23     4608 7575 3356 2686 4468 + Announce - aggregate of 204.127.240.0/24 (4608 7575 3356 2686 4468) and 204.127.241.0/24 (4608 7575 3356 2686 4468)
  204.127.240.0/24     4608 7575 3356 2686 4468 - Withdrawn - aggregated with 204.127.241.0/24 (4608 7575 3356 2686 4468)
  204.127.241.0/24     4608 7575 3356 2686 4468 - Withdrawn - aggregated with 204.127.240.0/24 (4608 7575 3356 2686 4468)
  204.127.242.0/24     4608 7575 3356 2686 4468   
  204.127.245.0/24     4777 2497 2687 4468    
  204.127.249.0/24     4777 2497 2687 4468    
  204.127.251.0/24     4608 1221 2687 4468    

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

AS4468   6 More Specifics   6 Total Advertisements   EASYLINK4 - AT&T Enterprises, LLC, US
    204.127.240.0/24              204.127.0.0/16
    204.127.241.0/24              204.127.0.0/16
    204.127.242.0/24              204.127.0.0/16
    204.127.245.0/24              204.127.0.0/16
    204.127.249.0/24              204.127.0.0/16
    204.127.251.0/24              204.127.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS4468 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS4468\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:       4468
             ASName:         EASYLINK4
             ASHandle:       AS4468
             RegDate:        1995-03-05
             Updated:        2025-03-18
             Ref:            https://rdap.arin.net/registry/autnum/4468
             
             
             
             OrgName:        AT&T Enterprises, LLC
             OrgId:          AEL-360
             Address:        208 S. Akard St.
             City:           Dallas
             StateProv:      TX
             PostalCode:     75202
             Country:        US
             RegDate:        2024-11-22
             Updated:        2026-06-05
             Ref:            https://rdap.arin.net/registry/entity/AEL-360
             
             
             OrgAbuseHandle: ABUSE7-ARIN
             OrgAbuseName:   abuse
             OrgAbusePhone:  +1-919-319-8167 
             OrgAbuseEmail:  abuse@att.net
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE7-ARIN
             
             OrgRoutingHandle: ROUTI59-ARIN
             OrgRoutingName:   Routing POC
             OrgRoutingPhone:  +1-999-999-9999 
             OrgRoutingEmail:  routing_poc@att.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/ROUTI59-ARIN
             
             OrgTechHandle: ICC-ARIN
             OrgTechName:   IP Team
             OrgTechPhone:  +1-888-876-2382 
             OrgTechEmail:  rm-ipspecialist@att.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ICC-ARIN
             
             OrgTechHandle: ZS44-ARIN
             OrgTechName:   IPAdmin-ATT Internet Services
             OrgTechPhone:  +1-888-510-5545 
             OrgTechEmail:  ipadmin@semail.att.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ZS44-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.
             #