Report for 21874

Name

MMC - MMC, 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.

21874 MERCER-RIPE-AS Mercer Human Resource Consulting

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS3356    LEVEL3 Level 3 Communications
    AS8220    COLT COLT Telecommunications
    AS4004    GLOBALONE-EQUANT-UK Equant UK and Greece Autonomous System

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
2136  AS21874  ORIGIN  Originate:      68864 /15.93  Transit:          0 /0.00  MERCER-RIPE-AS Mercer Human Resource Consulting

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       %
 5463 AS21874 MERCER-RIPE-AS Mercer Human Resource Con      8      2      1      7      1  12.50%


  Prefix               AS Path                              Aggregation Suggestion
  168.168.0.0/16       4637 3356 21874        
  168.168.40.0/22      4637 3356 8220 21874   
  168.168.44.0/22      4637 5511 4004 21874   
  204.26.1.0/24        4637 3356 21874        
  204.26.5.0/24        4637 3356 21874        
  204.26.7.0/24        4637 3356 21874        
  204.254.128.0/23     4637 3356 21874      + Announce - aggregate of 204.254.128.0/24 (4637 3356 21874) and 204.254.129.0/24 (4637 3356 21874)
  204.254.128.0/24     4637 3356 21874      - Withdrawn - aggregated with 204.254.129.0/24 (4637 3356 21874)
  204.254.129.0/24     4637 3356 21874      - Withdrawn - aggregated with 204.254.128.0/24 (4637 3356 21874)

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

AS21874   7 More Specifics   8 Total Advertisements   MERCER-RIPE-AS Mercer Human Resource Consulting
    168.168.40.0/22               168.168.0.0/16
    168.168.44.0/22               168.168.0.0/16
    204.26.1.0/24                 204.26.0.0/21
    204.26.5.0/24                 204.26.0.0/21
    204.26.7.0/24                 204.26.0.0/21
    204.254.128.0/24              204.252.0.0/14
    204.254.129.0/24              204.252.0.0/14

Whois Entry

whois: 402332

IANA has recorded AS21874 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21874\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:       21874
             ASName:         MMC
             ASHandle:       AS21874
             RegDate:        2001-07-03
             Updated:        2022-12-02
             Ref:            https://rdap.arin.net/registry/autnum/21874
             
             
             OrgName:        MMC
             OrgId:          MMC-337
             Address:        1166 Avenue of the Americas
             City:           New York
             StateProv:      NY
             PostalCode:     10036
             Country:        US
             RegDate:        2019-12-16
             Updated:        2020-09-23
             Ref:            https://rdap.arin.net/registry/entity/MMC-337
             
             
             OrgAbuseHandle: MMCAB-ARIN
             OrgAbuseName:   MMC-Abuse
             OrgAbusePhone:  +1-502-561-4600 
             OrgAbuseEmail:  abuse@mmc.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MMCAB-ARIN
             
             OrgDNSHandle: VIHLI-ARIN
             OrgDNSName:   Vihlidal, Brian 
             OrgDNSPhone:  +1-502-561-4600 
             OrgDNSEmail:  brian.vihlidal@mmc.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/VIHLI-ARIN
             
             OrgTechHandle: INTER162-ARIN
             OrgTechName:   Internet Services
             OrgTechPhone:  +1-502-561-4600 
             OrgTechEmail:  internet.services@mmc.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/INTER162-ARIN
             
             OrgNOCHandle: MMCNO1-ARIN
             OrgNOCName:   MMC-NOC
             OrgNOCPhone:  +1-502-561-4600 
             OrgNOCEmail:  mgtinoc@mmc.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/MMCNO1-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.
             #