Report for 14045

Name

CHANGEHEALTHCARE - UnitedHealth Group Incorporated, 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 AS4637) 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.

14045 ENVOY - Envoy Corporation

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS2828    XO-AS15 - XO Communications
    AS3356    LEVEL3 Level 3 Communications

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
4937  AS14045  ORIGIN  Originate:      16640 /17.98  Transit:          0 /0.00  ENVOY - Envoy Corporation

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       %
 4970 AS14045 ENVOY - Envoy Corporation                     3      2      1      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  170.138.0.0/18       4637 2828 14045      + Announce - aggregate of 170.138.0.0/19 (4637 2828 14045) and 170.138.32.0/19 (4637 2828 14045)
  170.138.0.0/19       4637 2828 14045      - Withdrawn - aggregated with 170.138.32.0/19 (4637 2828 14045)
  170.138.32.0/19      4637 2828 14045      - Withdrawn - aggregated with 170.138.0.0/19 (4637 2828 14045)
  198.31.9.0/24        4637 3356 14045 14045   

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

AS14045   3 More Specifics   3 Total Advertisements   ENVOY - Envoy Corporation
    170.138.0.0/19                170.138.0.0/16
    170.138.32.0/19               170.138.0.0/16
    198.31.9.0/24                 198.31.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS14045 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS14045\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:       14045
             ASName:         CHANGEHEALTHCARE
             ASHandle:       AS14045
             RegDate:        2016-10-12
             Updated:        2025-08-28
             Ref:            https://rdap.arin.net/registry/autnum/14045
             
             
             OrgName:        UnitedHealth Group Incorporated
             OrgId:          UHC-5
             Address:        IP & DNS Team
             Address:        6150 Trenton Lane
             City:           Plymouth
             StateProv:      MN
             PostalCode:     55442
             Country:        US
             RegDate:        1994-05-23
             Updated:        2012-03-15
             Ref:            https://rdap.arin.net/registry/entity/UHC-5
             
             
             OrgTechHandle: UHNO-ARIN
             OrgTechName:   United Healthcare Network OC
             OrgTechPhone:  +1-763-744-1588 
             OrgTechEmail:  inet_ops@uhc.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/UHNO-ARIN
             
             OrgAbuseHandle: UHNO-ARIN
             OrgAbuseName:   United Healthcare Network OC
             OrgAbusePhone:  +1-763-744-1588 
             OrgAbuseEmail:  inet_ops@uhc.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/UHNO-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.
             #