Report for 11901

Name

COSWAN - County of Sacramento, 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.

11901 COSWAN - County of Sacramento, US

  Adjacency:     3  Upstream:     2  Downstream:     1
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
  Downstream Adjacent AS list
    AS23281         CITY-OF-SACRAMENTO - City of Sacramento, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
34832 AS11901        ORG+TRN Originate:       1024 /22.00  Transit:        256 /24.00 COSWAN - County of Sacramento, 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       %
32413 AS11901       COSWAN - County of Sacramento, US                  2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  208.79.244.0/23      4777 2497 6461 11901   
  208.79.246.0/23      4777 2497 3356 11901   

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

AS11901   2 More Specifics   2 Total Advertisements   COSWAN - County of Sacramento, US
    208.79.244.0/23               208.79.244.0/22
    208.79.246.0/23               208.79.244.0/22

Whois Entry

whois: 402599

IANA has recorded AS11901 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS11901\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:       11901
             ASName:         COSWAN
             ASHandle:       AS11901
             RegDate:        2007-05-29
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/11901
             
             
             OrgName:        County of Sacramento
             OrgId:          COUNTY-1
             Address:        799 G Street
             City:           Sacramento
             StateProv:      CA
             PostalCode:     95814
             Country:        US
             RegDate:        1992-02-14
             Updated:        2011-06-10
             Ref:            https://rdap.arin.net/registry/entity/COUNTY-1
             
             
             OrgTechHandle: PIM-ARIN
             OrgTechName:   Perimeter Infrastructure Management
             OrgTechPhone:  +1-916-875-1800 
             OrgTechEmail:  huycka@saccounty.net
             OrgTechRef:    https://rdap.arin.net/registry/entity/PIM-ARIN
             
             OrgAbuseHandle: PIM-ARIN
             OrgAbuseName:   Perimeter Infrastructure Management
             OrgAbusePhone:  +1-916-875-1800 
             OrgAbuseEmail:  huycka@saccounty.net
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/PIM-ARIN
             
             OrgNOCHandle: CSD3-ARIN
             OrgNOCName:   County of Sacramento - DNS
             OrgNOCPhone:  +1-916-874-9104 
             OrgNOCEmail:  juanr@saccounty.net
             OrgNOCRef:    https://rdap.arin.net/registry/entity/CSD3-ARIN
             
             OrgNOCHandle: PIM-ARIN
             OrgNOCName:   Perimeter Infrastructure Management
             OrgNOCPhone:  +1-916-875-1800 
             OrgNOCEmail:  huycka@saccounty.net
             OrgNOCRef:    https://rdap.arin.net/registry/entity/PIM-ARIN
             
             OrgAbuseHandle: CSD3-ARIN
             OrgAbuseName:   County of Sacramento - DNS
             OrgAbusePhone:  +1-916-874-9104 
             OrgAbuseEmail:  juanr@saccounty.net
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/CSD3-ARIN
             
             RNOCHandle: PIM-ARIN
             RNOCName:   Perimeter Infrastructure Management
             RNOCPhone:  +1-916-875-1800 
             RNOCEmail:  huycka@saccounty.net
             RNOCRef:    https://rdap.arin.net/registry/entity/PIM-ARIN
             
             RAbuseHandle: PIM-ARIN
             RAbuseName:   Perimeter Infrastructure Management
             RAbusePhone:  +1-916-875-1800 
             RAbuseEmail:  huycka@saccounty.net
             RAbuseRef:    https://rdap.arin.net/registry/entity/PIM-ARIN
             
             RTechHandle: PIM-ARIN
             RTechName:   Perimeter Infrastructure Management
             RTechPhone:  +1-916-875-1800 
             RTechEmail:  huycka@saccounty.net
             RTechRef:    https://rdap.arin.net/registry/entity/PIM-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.
             #