Report for 31900

Name

CITYOFTHORNTON - City of Thornton, 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.

31900 CITYOFTHORNTON - City of Thornton, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
60900 AS31900        ORIGIN  Originate:        256 /24.00  Transit:          0 /0.00  CITYOFTHORNTON - City of Thornton, 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       %
39783 AS31900       CITYOFTHORNTON - City of Thornton, US              1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  199.117.212.0/24     4777 2516 3356 31900 31900 31900   

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

AS31900   1 More Specifics   1 Total Advertisements   CITYOFTHORNTON - City of Thornton, US
    199.117.212.0/24              199.117.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS31900 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS31900\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:       31900
             ASName:         CITYOFTHORNTON
             ASHandle:       AS31900
             RegDate:        2004-01-20
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/31900
             
             
             OrgName:        City of Thornton
             OrgId:          CITYO-41
             Address:        9500 Civic Center Drive
             Address:        IT
             City:           Thornton
             StateProv:      CO
             PostalCode:     80229
             Country:        US
             RegDate:        2003-10-27
             Updated:        2011-09-24
             Ref:            https://rdap.arin.net/registry/entity/CITYO-41
             
             
             OrgAbuseHandle: NETWO392-ARIN
             OrgAbuseName:   Network Operations
             OrgAbusePhone:  +1-303-538-7690 
             OrgAbuseEmail:  netadmin@cityofthornton.net
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO392-ARIN
             
             OrgTechHandle: NETWO392-ARIN
             OrgTechName:   Network Operations
             OrgTechPhone:  +1-303-538-7690 
             OrgTechEmail:  netadmin@cityofthornton.net
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO392-ARIN
             
             RTechHandle: NETWO392-ARIN
             RTechName:   Network Operations
             RTechPhone:  +1-303-538-7690 
             RTechEmail:  netadmin@cityofthornton.net
             RTechRef:    https://rdap.arin.net/registry/entity/NETWO392-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.
             #