Report for 40397

Name

FIRST-MANHATTAN - First Manhattan Co., 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.

40397 FIRST-MANHATTAN, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS46887         CROWNCASTLE-AS46887, US
    AS174           COGENT-174, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
62243 AS40397        ORIGIN  Originate:        256 /24.00  Transit:          0 /0.00  FIRST-MANHATTAN, 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       %
42707 AS40397       FIRST-MANHATTAN, US                                1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  65.199.161.0/24      49788 174 40397        

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

AS40397   1 More Specifics   1 Total Advertisements   FIRST-MANHATTAN, US
    65.199.161.0/24               65.192.0.0/11

Whois Entry

whois: 402590

IANA has recorded AS40397 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS40397\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:       40397
             ASName:         FIRST-MANHATTAN
             ASHandle:       AS40397
             RegDate:        2011-07-06
             Updated:        2022-01-10
             Ref:            https://rdap.arin.net/registry/autnum/40397
             
             
             OrgName:        First Manhattan Co.
             OrgId:          FM-1
             Address:        399 Park Ave
             Address:        27th Floor
             City:           New York
             StateProv:      NY
             PostalCode:     10022
             Country:        US
             RegDate:        2011-06-17
             Updated:        2022-01-07
             Ref:            https://rdap.arin.net/registry/entity/FM-1
             
             
             OrgAbuseHandle: ARIN49-ARIN
             OrgAbuseName:   arin
             OrgAbusePhone:  +1-212-756-3300 
             OrgAbuseEmail:  arin@firstmanhattan.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ARIN49-ARIN
             
             OrgTechHandle: ARIN49-ARIN
             OrgTechName:   arin
             OrgTechPhone:  +1-212-756-3300 
             OrgTechEmail:  arin@firstmanhattan.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ARIN49-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.
             #