Report for 21900

Name

LBPC - LAW BULLETIN PUBLISHING COMPANY, 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 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.

21900 LBPC, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS7018          ATT-INTERNET4, US
    AS6079          RCN-AS, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
48745 AS21900        ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  LBPC, 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       %
36179 AS21900       LBPC, US                                           2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  12.229.146.0/24      7018 21900             
  68.250.141.0/24      293 6079 21900         

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

AS21900   2 More Specifics   2 Total Advertisements   LBPC, US
    12.229.146.0/24               12.0.0.0/8
    68.250.141.0/24               68.248.0.0/13

Whois Entry

whois: 402590

IANA has recorded AS21900 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21900\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:       21900
             ASName:         LBPC
             ASHandle:       AS21900
             RegDate:        2001-07-10
             Updated:        2012-02-24
             Ref:            https://rdap.arin.net/registry/autnum/21900
             
             
             OrgName:        LAW BULLETIN PUBLISHING COMPANY
             OrgId:          LBP-6
             Address:        415 N STATE ST
             City:           CHICAGO
             StateProv:      IL
             PostalCode:     60654
             Country:        US
             RegDate:        2001-05-30
             Updated:        2011-09-24
             Ref:            https://rdap.arin.net/registry/entity/LBP-6
             
             
             OrgTechHandle: DR987-ARIN
             OrgTechName:   ROSS, DARRELL 
             OrgTechPhone:  +1-312-644-7800 
             OrgTechEmail:  DROSS@lawbulletinmedia.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/DR987-ARIN
             
             OrgAbuseHandle: DR987-ARIN
             OrgAbuseName:   ROSS, DARRELL 
             OrgAbusePhone:  +1-312-644-7800 
             OrgAbuseEmail:  DROSS@lawbulletinmedia.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/DR987-ARIN
             
             RTechHandle: DR987-ARIN
             RTechName:   ROSS, DARRELL 
             RTechPhone:  +1-312-644-7800 
             RTechEmail:  DROSS@lawbulletinmedia.com
             RTechRef:    https://rdap.arin.net/registry/entity/DR987-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.
             #