Report for 21842

Name

PJM - PJM Interconnection LLC., 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.

21842 PJM, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS701           UUNET, US
    AS7018          ATT-INTERNET4, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
35586 AS21842        ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  PJM, 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       %
36168 AS21842       PJM, US                                            3      0      0      3      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  12.104.52.0/23       7018 21842             
  192.251.13.0/24      7018 21842             
  192.251.14.0/24      7018 21842             

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

AS21842   1 More Specifics   3 Total Advertisements   PJM, US
    12.104.52.0/23                12.0.0.0/8

Whois Entry

whois: 402590

IANA has recorded AS21842 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21842\n             
             #
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             # 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/
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             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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             ASNumber:       21842
             ASName:         PJM
             ASHandle:       AS21842
             RegDate:        2001-06-28
             Updated:        2013-05-29
             Ref:            https://rdap.arin.net/registry/autnum/21842
             
             
             OrgName:        PJM Interconnection LLC.
             OrgId:          PIL-37
             Address:        955 Jefferson Drive
             City:           Norristown
             StateProv:      PA
             PostalCode:     19403
             Country:        US
             RegDate:        2001-06-28
             Updated:        2013-05-29
             Ref:            https://rdap.arin.net/registry/entity/PIL-37
             
             
             OrgNOCHandle: LP148-ARIN
             OrgNOCName:   PJM Interconnection, LLC
             OrgNOCPhone:  +1-610-666-2244 
             OrgNOCEmail:  networking@pjm.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/LP148-ARIN
             
             OrgTechHandle: LP148-ARIN
             OrgTechName:   PJM Interconnection, LLC
             OrgTechPhone:  +1-610-666-2244 
             OrgTechEmail:  networking@pjm.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/LP148-ARIN
             
             OrgAbuseHandle: LP148-ARIN
             OrgAbuseName:   PJM Interconnection, LLC
             OrgAbusePhone:  +1-610-666-2244 
             OrgAbuseEmail:  networking@pjm.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/LP148-ARIN
             
             RNOCHandle: LP148-ARIN
             RNOCName:   PJM Interconnection, LLC
             RNOCPhone:  +1-610-666-2244 
             RNOCEmail:  networking@pjm.com
             RNOCRef:    https://rdap.arin.net/registry/entity/LP148-ARIN
             
             RTechHandle: LP148-ARIN
             RTechName:   PJM Interconnection, LLC
             RTechPhone:  +1-610-666-2244 
             RTechEmail:  networking@pjm.com
             RTechRef:    https://rdap.arin.net/registry/entity/LP148-ARIN
             
             RAbuseHandle: LP148-ARIN
             RAbuseName:   PJM Interconnection, LLC
             RAbusePhone:  +1-610-666-2244 
             RAbuseEmail:  networking@pjm.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/LP148-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.
             #