Report for 21837

Name

OPERASOFTWARE - Opera Software Americas 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 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.

21837 OPERASOFTWARE, US

  Adjacency:     4  Upstream:     3  Downstream:     1
  Upstream Adjacent AS list
    AS6939          HURRICANE, US
    AS174           COGENT-174, US
    AS6461          ZAYO-6461, US
  Downstream Adjacent AS list
    AS39832         NO-OPERA, NO

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
14228 AS21837        ORG+TRN Originate:       5888 /19.48  Transit:       2048 /21.00 OPERASOFTWARE, 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       %
16155 AS21837       OPERASOFTWARE, US                                 10      4      2      8      2  20.00%


  Prefix               AS Path                              Aggregation Suggestion
  107.167.96.0/22      2497 174 21837         
  107.167.100.0/24     6939 21837             
  107.167.102.0/23     2497 174 21837       + Announce - aggregate of 107.167.102.0/24 (2497 174 21837) and 107.167.103.0/24 (2497 174 21837)
  107.167.102.0/24     2497 174 21837       - Withdrawn - aggregated with 107.167.103.0/24 (2497 174 21837)
  107.167.103.0/24     2497 174 21837       - Withdrawn - aggregated with 107.167.102.0/24 (2497 174 21837)
  107.167.104.0/21     6939 21837             
  107.167.116.0/22     6939 21837             
  107.167.122.0/23     6939 21837           + Announce - aggregate of 107.167.122.0/24 (6939 21837) and 107.167.123.0/24 (6939 21837)
  107.167.122.0/24     6939 21837           - Withdrawn - aggregated with 107.167.123.0/24 (6939 21837)
  107.167.123.0/24     6939 21837           - Withdrawn - aggregated with 107.167.122.0/24 (6939 21837)
  107.167.125.0/24     2497 174 21837         
  107.167.126.0/24     6939 21837             

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

AS21837   10 More Specifics   10 Total Advertisements   OPERASOFTWARE, US
    107.167.96.0/22               107.167.96.0/19
    107.167.100.0/24              107.167.96.0/19
    107.167.102.0/24              107.167.96.0/19
    107.167.103.0/24              107.167.96.0/19
    107.167.104.0/21              107.167.96.0/19
    107.167.116.0/22              107.167.96.0/19
    107.167.122.0/24              107.167.96.0/19
    107.167.123.0/24              107.167.96.0/19
    107.167.125.0/24              107.167.96.0/19
    107.167.126.0/24              107.167.96.0/19

Whois Entry

whois: 402603

IANA has recorded AS21837 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21837\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:       21837
             ASName:         OPERASOFTWARE
             ASHandle:       AS21837
             RegDate:        2013-10-04
             Updated:        2013-10-04
             Ref:            https://rdap.arin.net/registry/autnum/21837
             
             
             OrgName:        Opera Software Americas LLC
             OrgId:          OSAL
             Address:        1875 South Grant Street, suite #800
             Address:        San Mateo
             City:           San Mateo
             StateProv:      CA
             PostalCode:     94402
             Country:        US
             RegDate:        2013-05-03
             Updated:        2013-05-03
             Ref:            https://rdap.arin.net/registry/entity/OSAL
             
             
             OrgTechHandle: NOC13144-ARIN
             OrgTechName:   Network Operations Center
             OrgTechPhone:  +4740401466 
             OrgTechEmail:  netops@opera.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NOC13144-ARIN
             
             OrgNOCHandle: NOC13144-ARIN
             OrgNOCName:   Network Operations Center
             OrgNOCPhone:  +4740401466 
             OrgNOCEmail:  netops@opera.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC13144-ARIN
             
             OrgAbuseHandle: ABUSE3754-ARIN
             OrgAbuseName:   Abuse Desk
             OrgAbusePhone:  +4740401466 
             OrgAbuseEmail:  abuse@opera.software
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE3754-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.
             #