Report for 11971

Name

PFIZERNET-GROTON - Pfizer Inc., 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.

11971 PFIZERNET-GROTON - PFIZER INC.

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS7018    ATT-INTERNET4 - AT&T WorldNet Services

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
5634  AS11971  ORIGIN  Originate:      12544 /18.39  Transit:          0 /0.00  PFIZERNET-GROTON - PFIZER INC.

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       %
 4845 AS11971 PFIZERNET-GROTON - PFIZER INC.                6      2      1      5      1  16.67%


  Prefix               AS Path                              Aggregation Suggestion
  12.18.36.0/24        4637 3491 3561 7018 11971 11971 11971 11971   
  148.168.32.0/19      4637 3491 3561 7018 11971   
  148.168.100.0/22     4637 3491 3561 7018 11971   
  148.168.104.0/22     4637 3491 3561 7018 11971   
  148.168.224.0/21     4637 3491 3561 7018 11971 + Announce - aggregate of 148.168.224.0/22 (4637 3491 3561 7018 11971) and 148.168.228.0/22 (4637 3491 3561 7018 11971)
  148.168.224.0/22     4637 3491 3561 7018 11971 - Withdrawn - aggregated with 148.168.228.0/22 (4637 3491 3561 7018 11971)
  148.168.228.0/22     4637 3491 3561 7018 11971 - Withdrawn - aggregated with 148.168.224.0/22 (4637 3491 3561 7018 11971)

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

AS11971   6 More Specifics   6 Total Advertisements   PFIZERNET-GROTON - PFIZER INC.
    12.18.36.0/24                 12.0.0.0/8
    148.168.32.0/19               148.168.0.0/16
    148.168.100.0/22              148.168.0.0/16
    148.168.104.0/22              148.168.0.0/16
    148.168.224.0/22              148.168.0.0/16
    148.168.228.0/22              148.168.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS11971 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS11971\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:       11971
             ASName:         PFIZERNET-GROTON
             ASHandle:       AS11971
             RegDate:        1999-02-17
             Updated:        2021-07-03
             Ref:            https://rdap.arin.net/registry/autnum/11971
             
             
             OrgName:        Pfizer Inc.
             OrgId:          PFIZER
             Address:        66 Hudson Boulevard East
             City:           New York
             StateProv:      NY
             PostalCode:     10001-2192
             Country:        US
             RegDate:        1991-05-09
             Updated:        2025-04-21
             Ref:            https://rdap.arin.net/registry/entity/PFIZER
             
             
             OrgDNSHandle: AZARR4-ARIN
             OrgDNSName:   Azar, Robert 
             OrgDNSPhone:  +1-269-833-2397 
             OrgDNSEmail:  robert.azar@pfizer.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/AZARR4-ARIN
             
             OrgTechHandle: AZARR4-ARIN
             OrgTechName:   Azar, Robert 
             OrgTechPhone:  +1-269-833-2397 
             OrgTechEmail:  robert.azar@pfizer.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/AZARR4-ARIN
             
             OrgNOCHandle: AZARR4-ARIN
             OrgNOCName:   Azar, Robert 
             OrgNOCPhone:  +1-269-833-2397 
             OrgNOCEmail:  robert.azar@pfizer.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/AZARR4-ARIN
             
             OrgAbuseHandle: NETAB18-ARIN
             OrgAbuseName:   NetAbuse
             OrgAbusePhone:  +1-484-865-1564 
             OrgAbuseEmail:  NetAbuse@Pfizer.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETAB18-ARIN
             
             OrgRoutingHandle: AZARR4-ARIN
             OrgRoutingName:   Azar, Robert 
             OrgRoutingPhone:  +1-269-833-2397 
             OrgRoutingEmail:  robert.azar@pfizer.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/AZARR4-ARIN
             
             RTechHandle: AZARR4-ARIN
             RTechName:   Azar, Robert 
             RTechPhone:  +1-269-833-2397 
             RTechEmail:  robert.azar@pfizer.com
             RTechRef:    https://rdap.arin.net/registry/entity/AZARR4-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.
             #