Report for 3926

Name

FFX-CNTY - Fairfax County Dept of Information Technology, 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.

3926 FFX-CNTY - Fairfax County Dept of Information Technology, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS22773         ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2846  AS3926         ORIGIN  Originate:      75264 /15.80  Transit:          0 /0.00  FFX-CNTY - Fairfax County Dept of Information Technology, 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       %
20650 AS3926        FFX-CNTY - Fairfax County Dept of Information      8      2      1      7      1  12.50%


  Prefix               AS Path                              Aggregation Suggestion
  166.94.0.0/16        4777 2497 3356 3926    
  166.94.15.0/24       4777 2497 3257 22773 3926   
  166.94.16.0/24       4777 2497 3257 22773 3926   
  166.94.112.0/23      4777 2497 3257 22773 3926 + Announce - aggregate of 166.94.112.0/24 (4777 2497 3257 22773 3926) and 166.94.113.0/24 (4777 2497 3257 22773 3926)
  166.94.112.0/24      4777 2497 3257 22773 3926 - Withdrawn - aggregated with 166.94.113.0/24 (4777 2497 3257 22773 3926)
  166.94.113.0/24      4777 2497 3257 22773 3926 - Withdrawn - aggregated with 166.94.112.0/24 (4777 2497 3257 22773 3926)
  166.94.150.0/23      4777 2497 3257 22773 3926   
  166.94.176.0/20      4777 2497 3257 22773 3926   
  198.24.16.0/20       4777 2497 3356 3926    

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

AS3926   6 More Specifics   8 Total Advertisements   FFX-CNTY - Fairfax County Dept of Information Technology, US
    166.94.15.0/24                166.94.0.0/16
    166.94.16.0/24                166.94.0.0/16
    166.94.112.0/24               166.94.0.0/16
    166.94.113.0/24               166.94.0.0/16
    166.94.150.0/23               166.94.0.0/16
    166.94.176.0/20               166.94.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS3926 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS3926\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:       3926
             ASName:         FFX-CNTY
             ASHandle:       AS3926
             RegDate:        1994-10-12
             Updated:        1994-10-12
             Ref:            https://rdap.arin.net/registry/autnum/3926
             
             
             OrgName:        Fairfax County Dept of Information Technology
             OrgId:          FCDIT
             Address:        12000 Government Center Parkway
             City:           Fairfax
             StateProv:      VA
             PostalCode:     22035-0043
             Country:        US
             RegDate:        1994-10-12
             Updated:        2012-10-10
             Ref:            https://rdap.arin.net/registry/entity/FCDIT
             
             
             OrgTechHandle: FN4-ARIN
             OrgTechName:   Nazareno, Fay 
             OrgTechPhone:  +1-703-324-2742 
             OrgTechEmail:  fnazar@fairfax.va.us
             OrgTechRef:    https://rdap.arin.net/registry/entity/FN4-ARIN
             
             OrgAbuseHandle: FN4-ARIN
             OrgAbuseName:   Nazareno, Fay 
             OrgAbusePhone:  +1-703-324-2742 
             OrgAbuseEmail:  fnazar@fairfax.va.us
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/FN4-ARIN
             
             RTechHandle: FN4-ARIN
             RTechName:   Nazareno, Fay 
             RTechPhone:  +1-703-324-2742 
             RTechEmail:  fnazar@fairfax.va.us
             RTechRef:    https://rdap.arin.net/registry/entity/FN4-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.
             #