Report for 21945

Name

HARLANDCLARKE-AS - Harland Clarke Corp., 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.

21945 HARLANDCLARKE-AS - Harland Clarke Corp., US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS62            CONE - CyrusOne LLC, US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
30082 AS21945        ORIGIN  Originate:       1536 /21.42  Transit:          0 /0.00  HARLANDCLARKE-AS - Harland Clarke Corp., 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       %
21105 AS21945       HARLANDCLARKE-AS - Harland Clarke Corp., US        5      2      1      4      1  20.00%


  Prefix               AS Path                              Aggregation Suggestion
  12.97.128.0/23       4777 2497 7018 21945 + Announce - aggregate of 12.97.128.0/24 (4777 2497 7018 21945) and 12.97.129.0/24 (4777 2497 7018 21945)
  12.97.128.0/24       4777 2497 7018 21945 - Withdrawn - aggregated with 12.97.129.0/24 (4777 2497 7018 21945)
  12.97.129.0/24       4777 2497 7018 21945 - Withdrawn - aggregated with 12.97.128.0/24 (4777 2497 7018 21945)
  12.190.116.0/23      4777 2497 3257 62 21945 21945 21945 21945   
  12.190.118.0/24      4777 2497 3257 62 21945 21945 21945 21945   
  12.190.119.0/24      4777 2497 3257 62 21945   

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

AS21945   5 More Specifics   5 Total Advertisements   HARLANDCLARKE-AS - Harland Clarke Corp., US
    12.97.128.0/24                12.0.0.0/8
    12.97.129.0/24                12.0.0.0/8
    12.190.116.0/23               12.0.0.0/8
    12.190.118.0/24               12.0.0.0/8
    12.190.119.0/24               12.0.0.0/8

Whois Entry

whois: 402332

IANA has recorded AS21945 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21945\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:       21945
             ASName:         HARLANDCLARKE-AS
             ASHandle:       AS21945
             RegDate:        2006-02-07
             Updated:        2012-02-24
             Ref:            https://rdap.arin.net/registry/autnum/21945
             
             
             OrgName:        Harland Clarke Corp.
             OrgId:          HCC-106
             Address:        15955 LaCantera Parkway
             City:           San Antonio
             StateProv:      TX
             PostalCode:     78256
             Country:        US
             RegDate:        2008-01-22
             Updated:        2025-04-29
             Ref:            https://rdap.arin.net/registry/entity/HCC-106
             
             
             OrgTechHandle: DARRE6-ARIN
             OrgTechName:   Westfall, Darren A
             OrgTechPhone:  +1-210-697-1279 
             OrgTechEmail:  Darren.Westfall@vericast.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/DARRE6-ARIN
             
             OrgAbuseHandle: DARRE6-ARIN
             OrgAbuseName:   Westfall, Darren A
             OrgAbusePhone:  +1-210-697-1279 
             OrgAbuseEmail:  Darren.Westfall@vericast.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/DARRE6-ARIN
             
             OrgTechHandle: CBL15-ARIN
             OrgTechName:   Black, Chris 
             OrgTechPhone:  +1-210-694-1055 
             OrgTechEmail:  Chris.Black@harlandclarke.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/CBL15-ARIN
             
             OrgAbuseHandle: CBL15-ARIN
             OrgAbuseName:   Black, Chris 
             OrgAbusePhone:  +1-210-694-1055 
             OrgAbuseEmail:  Chris.Black@harlandclarke.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/CBL15-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.
             #