Report for 12145

Name

COLORADOSTATEUNIV - Colorado State University, 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 AS6447) 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.

12145 COLORADOSTATEUNIV, US

  Adjacency:     6  Upstream:     1  Downstream:     5
  Upstream Adjacent AS list
    AS14041         AS14041, US
  Downstream Adjacent AS list
    AS31991         PRPA, US
    AS394748        CITYOFFORTCOLLINS, US
    AS25825         PVH-ASN-1, US
    AS54669         LARIMER-ASN, US
    AS54060         POUDRESCHOOLDISTRICT, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2669  AS12145        ORG+TRN Originate:      82176 /15.67  Transit:       1280 /21.68 COLORADOSTATEUNIV, 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       %
20883 AS12145       COLORADOSTATEUNIV, US                              3      1      0      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  129.19.0.0/18        293 14041 12145        
  129.19.3.0/24        293 14041 12145      - Withdrawn - matching aggregate 129.19.0.0/18 293 14041 12145
  129.82.0.0/16        293 14041 12145        

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

AS12145   2 More Specifics   3 Total Advertisements   COLORADOSTATEUNIV, US
    129.19.0.0/18                 129.19.0.0/16
    129.19.3.0/24                 129.19.0.0/16

Whois Entry

whois: 402590

IANA has recorded AS12145 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS12145\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:       12145
             ASName:         COLORADOSTATEUNIV
             ASHandle:       AS12145
             RegDate:        1999-04-06
             Updated:        2022-07-14
             Ref:            https://rdap.arin.net/registry/autnum/12145
             
             
             OrgName:        Colorado State University
             OrgId:          CSU-2
             Address:        Academic Computing and Networking Services
             Address:        Colorado State University
             Address:        1018 Campus Delivery
             City:           Fort Collins
             StateProv:      CO
             PostalCode:     80523
             Country:        US
             RegDate:        
             Updated:        2024-11-25
             Ref:            https://rdap.arin.net/registry/entity/CSU-2
             
             
             OrgTechHandle: DNSAD191-ARIN
             OrgTechName:   DNS Administrator
             OrgTechPhone:  +1-970-491-1958 
             OrgTechEmail:  dns.admin@colostate.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/DNSAD191-ARIN
             
             OrgAbuseHandle: DNSAD191-ARIN
             OrgAbuseName:   DNS Administrator
             OrgAbusePhone:  +1-970-491-1958 
             OrgAbuseEmail:  dns.admin@colostate.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/DNSAD191-ARIN
             
             RTechHandle: ASMUS11-ARIN
             RTechName:   Asmus, Angie 
             RTechPhone:  +1-970-491-7582 
             RTechEmail:  angie.asmus@colostate.edu
             RTechRef:    https://rdap.arin.net/registry/entity/ASMUS11-ARIN
             
             RTechHandle: MPW-ARIN
             RTechName:   Willard, Michael Patrick
             RTechPhone:  +1-970-491-4651 
             RTechEmail:  mike.willard@colostate.edu
             RTechRef:    https://rdap.arin.net/registry/entity/MPW-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.
             #