Report for 3401

Name

SEATTLE - City of Seattle, Dept. of Admin. Services, 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.

3401 SEATTLE - City of Seattle, Dept. of Admin. Services, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS174           COGENT-174 - Cogent Communications, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
16716 AS3401         ORIGIN  Originate:       4096 /20.00  Transit:          0 /0.00  SEATTLE - City of Seattle, Dept. of Admin. Services, 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       %
20625 AS3401        SEATTLE - City of Seattle, Dept. of Admin. Se      3      1      0      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  156.74.248.0/21      4777 2516 174 3401     
  156.74.248.0/22      4777 2516 174 3401   - Withdrawn - matching aggregate 156.74.248.0/21 4777 2516 174 3401
  156.74.252.0/22      4777 2497 3356 3401 3401   

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

AS3401   3 More Specifics   3 Total Advertisements   SEATTLE - City of Seattle, Dept. of Admin. Services, US
    156.74.248.0/21               156.74.0.0/16
    156.74.248.0/22               156.74.0.0/16
    156.74.252.0/22               156.74.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS3401 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS3401\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:       3401
             ASName:         SEATTLE
             ASHandle:       AS3401
             RegDate:        1994-02-04
             Updated:        2013-12-18
             Ref:            https://rdap.arin.net/registry/autnum/3401
             
             
             OrgName:        City of Seattle, Dept. of Admin. Services
             OrgId:          CSDAS
             Address:        700 5th Ave
             City:           Seattle
             StateProv:      WA
             PostalCode:     98104
             Country:        US
             RegDate:        1994-02-04
             Updated:        2013-12-18
             Ref:            https://rdap.arin.net/registry/entity/CSDAS
             
             
             OrgAbuseHandle: IIT10-ARIN
             OrgAbuseName:   Internet Infrastructure Team
             OrgAbusePhone:  +1-206-684-7304 
             OrgAbuseEmail:  perimeter@seattle.gov
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/IIT10-ARIN
             
             OrgTechHandle: IIT10-ARIN
             OrgTechName:   Internet Infrastructure Team
             OrgTechPhone:  +1-206-684-7304 
             OrgTechEmail:  perimeter@seattle.gov
             OrgTechRef:    https://rdap.arin.net/registry/entity/IIT10-ARIN
             
             RTechHandle: HAGEN17-ARIN
             RTechName:   Hagen, Kenneth 
             RTechPhone:  +1-206-459-0027 
             RTechEmail:  ken.hagen@seattle.gov
             RTechRef:    https://rdap.arin.net/registry/entity/HAGEN17-ARIN
             
             RTechHandle: IIT10-ARIN
             RTechName:   Internet Infrastructure Team
             RTechPhone:  +1-206-684-7304 
             RTechEmail:  perimeter@seattle.gov
             RTechRef:    https://rdap.arin.net/registry/entity/IIT10-ARIN
             
             RAbuseHandle: IIT10-ARIN
             RAbuseName:   Internet Infrastructure Team
             RAbusePhone:  +1-206-684-7304 
             RAbuseEmail:  perimeter@seattle.gov
             RAbuseRef:    https://rdap.arin.net/registry/entity/IIT10-ARIN
             
             RNOCHandle: IIT10-ARIN
             RNOCName:   Internet Infrastructure Team
             RNOCPhone:  +1-206-684-7304 
             RNOCEmail:  perimeter@seattle.gov
             RNOCRef:    https://rdap.arin.net/registry/entity/IIT10-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.
             #