Report for 11212

Name

COUNTY-OF-SONOMA - COUNTY OF SONOMA, 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.

11212 COUNTY-OF-SONOMA - COUNTY OF SONOMA, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
34734 AS11212        ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  COUNTY-OF-SONOMA - COUNTY OF SONOMA, 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       %
31932 AS11212       COUNTY-OF-SONOMA - COUNTY OF SONOMA, US            3      0      0      3      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  12.202.169.0/24      4777 2497 7018 11212 11212   
  50.233.206.0/23      4777 2497 7018 11212 11212   
  209.77.204.0/24      4777 2497 7018 11212 11212   

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

AS11212   3 More Specifics   3 Total Advertisements   COUNTY-OF-SONOMA - COUNTY OF SONOMA, US
    12.202.169.0/24               12.0.0.0/8
    50.233.206.0/23               50.128.0.0/9
    209.77.204.0/24               209.76.0.0/14

Whois Entry

whois: 402332

IANA has recorded AS11212 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS11212\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:       11212
             ASName:         COUNTY-OF-SONOMA
             ASHandle:       AS11212
             RegDate:        2007-05-21
             Updated:        2025-10-04
             Ref:            https://rdap.arin.net/registry/autnum/11212
             
             
             OrgName:        COUNTY OF SONOMA
             OrgId:          COUNT-45
             Address:        585 FISCAL DR
             City:           SANTA ROSA
             StateProv:      CA
             PostalCode:     95403
             Country:        US
             RegDate:        2007-04-17
             Updated:        2025-07-14
             Ref:            https://rdap.arin.net/registry/entity/COUNT-45
             
             
             OrgAbuseHandle: ISO29-ARIN
             OrgAbuseName:   Information Security Officer
             OrgAbusePhone:  +1-707-565-5110 
             OrgAbuseEmail:  iso@sonoma-county.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ISO29-ARIN
             
             OrgTechHandle: WALSH268-ARIN
             OrgTechName:   Walsh, John 
             OrgTechPhone:  +1-707-565-8253 
             OrgTechEmail:  John.Walsh@sonomacounty.gov
             OrgTechRef:    https://rdap.arin.net/registry/entity/WALSH268-ARIN
             
             OrgTechHandle: KAISE105-ARIN
             OrgTechName:   Kaiser, Jonathan 
             OrgTechPhone:  +1-707-565-2712 
             OrgTechEmail:  jon.kaiser@sonomacounty.gov
             OrgTechRef:    https://rdap.arin.net/registry/entity/KAISE105-ARIN
             
             OrgAbuseHandle: WALSH268-ARIN
             OrgAbuseName:   Walsh, John 
             OrgAbusePhone:  +1-707-565-8253 
             OrgAbuseEmail:  John.Walsh@sonomacounty.gov
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/WALSH268-ARIN
             
             RTechHandle: KAISE105-ARIN
             RTechName:   Kaiser, Jonathan 
             RTechPhone:  +1-707-565-2712 
             RTechEmail:  jon.kaiser@sonomacounty.gov
             RTechRef:    https://rdap.arin.net/registry/entity/KAISE105-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.
             #