Report for 21942

Name

--No AS Description--

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 AS6447) 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.

21942 -Reserved AS-, ZZ

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS5610          O2-CZECH-REPUBLIC, CZ
    AS6855          SK-TELEKOM Slovak Telekom  T-Mobile CZ, SK

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
59959 AS21942        ORIGIN  Originate:        256 /24.00  Transit:          0 /0.00  -Reserved AS-, ZZ

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       %
36211 AS21942       -Reserved AS-, ZZ                                  1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  91.199.164.0/24      6939 5610 21942        

Whois Entry

whois: 402590

IANA has recorded AS21942 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21942\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.
             #
             
             
             No match found for -Vjw1.0,2401:2000:6660::13 21942.
             
             
             #
             # 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.
             #