Report for 21633

Name

DOI-NBC-NET - U.S. Department of the Interior, 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.

21633 DOI-NBC-NET - U.S. Department of the Interior, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS22284         AS22284-DOI-OPS - U.S. Department of the Interior, US
    AS3549          LVLT-3549 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
15733 AS21633        ORIGIN  Originate:       4608 /19.83  Transit:          0 /0.00  DOI-NBC-NET - U.S. Department of the Interior, 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       %
35609 AS21633       DOI-NBC-NET - U.S. Department of the Interior      4      0      0      4      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  137.227.96.0/21      4777 2516 3356 22284 21633   
  137.227.192.0/21     4777 2497 3356 22284 21633   
  205.173.0.0/24       4777 2516 3356 22284 3549 21633   
  205.173.4.0/24       4777 2516 3356 22284 3549 21633   

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

AS21633   4 More Specifics   4 Total Advertisements   DOI-NBC-NET - U.S. Department of the Interior, US
    137.227.96.0/21               137.227.0.0/16
    137.227.192.0/21              137.227.0.0/16
    205.173.0.0/24                205.173.0.0/21
    205.173.4.0/24                205.173.0.0/21

Whois Entry

whois: 402591

IANA has recorded AS21633 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21633\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:       21633
             ASName:         DOI-NBC-NET
             ASHandle:       AS21633
             RegDate:        2001-06-01
             Updated:        2023-11-17
             Ref:            https://rdap.arin.net/registry/autnum/21633
             
             
             OrgName:        U.S. Department of the Interior
             OrgId:          UDI-1
             Address:        1849 C St., N.W.
             City:           Washington
             StateProv:      DC
             PostalCode:     20240
             Country:        US
             RegDate:        1993-09-07
             Updated:        2025-01-28
             Ref:            https://rdap.arin.net/registry/entity/UDI-1
             
             
             OrgTechHandle: AYS-ARIN
             OrgTechName:   Shaw, Amy Y
             OrgTechPhone:  +1-703-622-6097 
             OrgTechEmail:  amy_y_shaw@ios.doi.gov
             OrgTechRef:    https://rdap.arin.net/registry/entity/AYS-ARIN
             
             OrgTechHandle: PICKE159-ARIN
             OrgTechName:   Pickett, Ronald 
             OrgTechPhone:  +1-303-969-7456 
             OrgTechEmail:  ron_l_pickett@ios.doi.gov
             OrgTechRef:    https://rdap.arin.net/registry/entity/PICKE159-ARIN
             
             OrgAbuseHandle: AYS-ARIN
             OrgAbuseName:   Shaw, Amy Y
             OrgAbusePhone:  +1-703-622-6097 
             OrgAbuseEmail:  amy_y_shaw@ios.doi.gov
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/AYS-ARIN
             
             OrgAbuseHandle: STEVE25-ARIN
             OrgAbuseName:   Harrington, Steven A
             OrgAbusePhone:  +1-303-564-8342 
             OrgAbuseEmail:  steven_harrington@ios.doi.gov
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/STEVE25-ARIN
             
             OrgTechHandle: STEVE25-ARIN
             OrgTechName:   Harrington, Steven A
             OrgTechPhone:  +1-303-564-8342 
             OrgTechEmail:  steven_harrington@ios.doi.gov
             OrgTechRef:    https://rdap.arin.net/registry/entity/STEVE25-ARIN
             
             OrgDNSHandle: STEVE25-ARIN
             OrgDNSName:   Harrington, Steven A
             OrgDNSPhone:  +1-303-564-8342 
             OrgDNSEmail:  steven_harrington@ios.doi.gov
             OrgDNSRef:    https://rdap.arin.net/registry/entity/STEVE25-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.
             #