21874 MMC, US
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS23498 CDSI, CA
AS577 BACOM, CA
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 23456 AS21874 ORIGIN Originate: 2304 /20.83 Transit: 0 /0.00 MMC, 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 % 36198 AS21874 MMC, US 2 0 0 2 0 0.00% Prefix AS Path Aggregation Suggestion 205.156.183.0/24 6939 21949 23498 21874 205.156.184.0/21 6939 577 21874
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS21874 13 More Specifics 13 Total Advertisements MMC, US
167.245.139.0/24 167.245.0.0/16
167.245.194.0/24 167.245.0.0/16
167.245.243.0/24 167.245.0.0/16
167.245.245.0/24 167.245.0.0/16
167.245.247.0/24 167.245.0.0/16
168.168.40.0/22 168.168.0.0/17
168.168.44.0/22 168.168.0.0/17
168.168.48.0/21 168.168.0.0/17
168.168.56.0/23 168.168.0.0/17
168.168.60.0/22 168.168.0.0/17
168.168.64.0/24 168.168.0.0/17
204.26.0.0/24 204.26.0.0/21
205.156.184.0/21 205.156.128.0/18
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 167.245.139.0/24 Announced
+ 167.245.194.0/24 Announced
+ 167.245.243.0/24 Announced
+ 167.245.245.0/24 Announced
+ 167.245.247.0/24 Announced
whois: 402590
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/
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# If you see inaccuracies in the results, please report at
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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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
OrgNOCHandle: MMCNO1-ARIN
OrgNOCName: MMC-NOC
OrgNOCPhone: +1-502-561-4600
OrgNOCEmail: mgtinoc@mmc.com
OrgNOCRef: https://rdap.arin.net/registry/entity/MMCNO1-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
#
# 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.
#