Report for 13998

Name

SWMED - University of Texas Southwestern Medical Center, 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.

13998 SWMED - UT Southwestern Medical Center at Dallas

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS7911    LVLT-7911 - Level 3 Communications, Inc.

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2165  AS13998  ORIGIN  Originate:      68096 /15.94  Transit:          0 /0.00  SWMED - UT Southwestern Medical Center at Dallas

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       %
 4966 AS13998 SWMED - UT Southwestern Medical Center a      7      2      1      6      1  14.29%


  Prefix               AS Path                              Aggregation Suggestion
  129.112.0.0/16       4637 3356 7911 13998   
  199.165.152.0/23     4637 3356 7911 13998 + Announce - aggregate of 199.165.152.0/24 (4637 3356 7911 13998) and 199.165.153.0/24 (4637 3356 7911 13998)
  199.165.152.0/24     4637 3356 7911 13998 - Withdrawn - aggregated with 199.165.153.0/24 (4637 3356 7911 13998)
  199.165.153.0/24     4637 3356 7911 13998 - Withdrawn - aggregated with 199.165.152.0/24 (4637 3356 7911 13998)
  199.165.154.0/24     4637 3356 7911 13998   
  199.242.234.0/23     4637 3356 7911 13998   
  199.242.236.0/22     4637 3356 7911 13998   
  199.249.214.0/24     4637 3356 7911 13998   

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

AS13998   2 More Specifics   7 Total Advertisements   SWMED - UT Southwestern Medical Center at Dallas
    199.165.152.0/24              199.165.152.0/23
    199.165.153.0/24              199.165.152.0/23

Whois Entry

whois: 402603

IANA has recorded AS13998 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS13998\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:       13998
             ASName:         SWMED
             ASHandle:       AS13998
             RegDate:        1999-10-01
             Updated:        2013-01-29
             Ref:            https://rdap.arin.net/registry/autnum/13998
             
             
             OrgName:        University of Texas Southwestern Medical Center
             OrgId:          USMCAD
             Address:        5323 Harry Hines
             City:           Dallas
             StateProv:      TX
             PostalCode:     75235-8595
             Country:        US
             RegDate:        1994-06-14
             Updated:        2024-09-09
             Ref:            https://rdap.arin.net/registry/entity/USMCAD
             
             
             OrgTechHandle: USMC-ARIN
             OrgTechName:   UT Southwestern Medical Center
             OrgTechPhone:  +1-214-648-0642 
             OrgTechEmail:  domains@utsouthwestern.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/USMC-ARIN
             
             OrgAbuseHandle: USMC-ARIN
             OrgAbuseName:   UT Southwestern Medical Center
             OrgAbusePhone:  +1-214-648-0642 
             OrgAbuseEmail:  domains@utsouthwestern.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/USMC-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.
             #