Report for 23433

Name

STAMPS-COM - STAMPS.COM, 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 AS4637) 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.

23433 STAMPS-COM - STAMPS.COM

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS12181   INTERNAP-2BLK - Internap Network Services

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
14871 AS23433  ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  STAMPS-COM - STAMPS.COM

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       %
 3992 AS23433 STAMPS-COM - STAMPS.COM                       3      2      0      1      2  66.67%


  Prefix               AS Path                              Aggregation Suggestion
  216.52.210.0/23      4637 3549 12181 23433   
  216.52.210.0/24      4637 3549 12181 23433 - Withdrawn - matching aggregate 216.52.210.0/23 4637 3549 12181 23433
  216.52.211.0/24      4637 3549 12181 23433 - Withdrawn - matching aggregate 216.52.210.0/23 4637 3549 12181 23433

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

AS23433   5 More Specifics   5 Total Advertisements   STAMPS-COM - STAMPS.COM
    63.251.198.0/24               63.251.0.0/16
    63.251.199.0/24               63.251.0.0/16
    216.52.210.0/23               216.52.0.0/16
    216.52.210.0/24               216.52.0.0/16
    216.52.211.0/24               216.52.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS23433 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS23433\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:       23433
             ASName:         STAMPS-COM
             ASHandle:       AS23433
             RegDate:        2002-03-18
             Updated:        2014-08-11
             Ref:            https://rdap.arin.net/registry/autnum/23433
             
             
             OrgName:        STAMPS.COM
             OrgId:          STMP
             Address:        1990 E. Grand Avenue
             City:           EL SEGUNDO
             StateProv:      CA
             PostalCode:     90245
             Country:        US
             RegDate:        1999-10-20
             Updated:        2014-07-03
             Ref:            https://rdap.arin.net/registry/entity/STMP
             
             
             OrgAbuseHandle: NETWO7037-ARIN
             OrgAbuseName:   Network Engineering
             OrgAbusePhone:  +1-310-482-5880 
             OrgAbuseEmail:  neteng@stamps.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO7037-ARIN
             
             OrgTechHandle: NETWO7037-ARIN
             OrgTechName:   Network Engineering
             OrgTechPhone:  +1-310-482-5880 
             OrgTechEmail:  neteng@stamps.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO7037-ARIN
             
             RAbuseHandle: NETWO7037-ARIN
             RAbuseName:   Network Engineering
             RAbusePhone:  +1-310-482-5880 
             RAbuseEmail:  neteng@stamps.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/NETWO7037-ARIN
             
             RNOCHandle: NETWO7037-ARIN
             RNOCName:   Network Engineering
             RNOCPhone:  +1-310-482-5880 
             RNOCEmail:  neteng@stamps.com
             RNOCRef:    https://rdap.arin.net/registry/entity/NETWO7037-ARIN
             
             RTechHandle: NETWO7037-ARIN
             RTechName:   Network Engineering
             RTechPhone:  +1-310-482-5880 
             RTechEmail:  neteng@stamps.com
             RTechRef:    https://rdap.arin.net/registry/entity/NETWO7037-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.
             #