17161 MMC, US
Adjacency: 5 Upstream: 5 Downstream: 0
Upstream Adjacent AS list
AS4826 VOCUS-BACKBONE-AS Vocus Connect International Backbone, AU
AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd, AU
AS15830 EQUINIX, NL
AS3356 LEVEL3, US
AS701 UUNET, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 4685 AS17161 ORIGIN Originate: 42496 /16.62 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 % 4048 AS17161 MMC, US 40 20 7 27 13 32.50% Prefix AS Path Aggregation Suggestion 167.245.3.0/24 6939 3356 17161 167.245.8.0/21 57866 3356 17161 + Announce - aggregate of 167.245.8.0/22 (57866 3356 17161) and 167.245.12.0/22 (57866 3356 17161) 167.245.8.0/22 57866 3356 17161 - Withdrawn - aggregated with 167.245.12.0/22 (57866 3356 17161) 167.245.12.0/22 57866 3356 17161 - Withdrawn - aggregated with 167.245.8.0/22 (57866 3356 17161) 167.245.16.0/20 57866 3356 17161 + Announce - aggregate of 167.245.16.0/21 (57866 3356 17161) and 167.245.24.0/21 (57866 3356 17161) 167.245.16.0/22 57866 3356 17161 - Withdrawn - aggregated with 167.245.20.0/22 (57866 3356 17161) 167.245.20.0/22 57866 3356 17161 - Withdrawn - aggregated with 167.245.16.0/22 (57866 3356 17161) 167.245.24.0/22 57866 3356 17161 - Withdrawn - aggregated with 167.245.28.0/22 (57866 3356 17161) 167.245.28.0/22 57866 3356 17161 - Withdrawn - aggregated with 167.245.24.0/22 (57866 3356 17161) 167.245.32.0/21 57866 3356 17161 + Announce - aggregate of 167.245.32.0/22 (57866 3356 17161) and 167.245.36.0/22 (57866 3356 17161) 167.245.32.0/22 57866 3356 17161 - Withdrawn - aggregated with 167.245.36.0/22 (57866 3356 17161) 167.245.36.0/22 57866 3356 17161 - Withdrawn - aggregated with 167.245.32.0/22 (57866 3356 17161) 167.245.40.0/22 57866 3356 17161 167.245.100.0/23 3257 15830 17161 167.245.104.0/22 2914 3356 17161 167.245.108.0/23 2914 3356 17161 167.245.159.0/24 6939 701 17161 167.245.160.0/19 6939 15830 17161 168.168.150.0/24 2914 7473 7474 17161 168.168.200.0/24 2497 7473 7474 17161 205.156.64.0/21 6939 7473 7474 17161 17161 17161 17161 17161 205.156.64.0/21 2497 4826 17161 + Announce - aggregate of 205.156.64.0/22 (2497 4826 17161) and 205.156.68.0/22 (2497 4826 17161) 205.156.64.0/22 2497 4826 17161 - Withdrawn - aggregated with 205.156.68.0/22 (2497 4826 17161) 205.156.68.0/22 2497 4826 17161 - Withdrawn - aggregated with 205.156.64.0/22 (2497 4826 17161) 205.156.72.0/24 2914 701 17161 205.156.84.0/24 6939 15830 17161 205.156.88.0/21 2497 4826 17161 205.156.96.0/21 2497 4826 17161 + Announce - aggregate of 205.156.96.0/22 (2497 4826 17161) and 205.156.100.0/22 (2497 4826 17161) 205.156.96.0/22 2497 4826 17161 - Withdrawn - aggregated with 205.156.100.0/22 (2497 4826 17161) 205.156.100.0/23 2497 4826 17161 - Withdrawn - aggregated with 205.156.102.0/23 (2497 4826 17161) 205.156.102.0/23 2497 4826 17161 - Withdrawn - aggregated with 205.156.100.0/23 (2497 4826 17161) 205.156.104.0/21 6939 7473 7474 17161 17161 17161 17161 17161 205.156.104.0/21 2497 4826 17161 + Announce - aggregate of 205.156.104.0/22 (2497 4826 17161) and 205.156.108.0/22 (2497 4826 17161) 205.156.104.0/22 2497 4826 17161 - Withdrawn - aggregated with 205.156.108.0/22 (2497 4826 17161) 205.156.108.0/22 2497 4826 17161 - Withdrawn - aggregated with 205.156.104.0/22 (2497 4826 17161) 205.156.112.0/22 2497 4826 17161 205.156.117.0/24 2497 4826 17161 205.156.128.0/20 2914 3356 17161 + Announce - aggregate of 205.156.128.0/21 (2914 3356 17161) and 205.156.136.0/21 (2914 3356 17161) 205.156.128.0/22 2914 3356 17161 - Withdrawn - aggregated with 205.156.132.0/22 (2914 3356 17161) 205.156.132.0/23 2914 3356 17161 - Withdrawn - aggregated with 205.156.134.0/23 (2914 3356 17161) 205.156.134.0/24 2914 3356 17161 - Withdrawn - aggregated with 205.156.135.0/24 (2914 3356 17161) 205.156.135.0/24 2914 3356 17161 - Withdrawn - aggregated with 205.156.134.0/24 (2914 3356 17161) 205.156.136.0/21 2914 3356 17161 - Withdrawn - aggregated with 205.156.128.0/21 (2914 3356 17161) 205.156.144.0/21 2914 3356 17161 205.156.152.0/22 2914 3356 17161 205.156.160.0/23 2914 3356 17161 205.156.164.0/24 2914 3356 17161
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS17161 43 More Specifics 43 Total Advertisements MMC, US
167.245.3.0/24 167.245.0.0/16
167.245.8.0/22 167.245.0.0/16
167.245.12.0/22 167.245.0.0/16
167.245.16.0/22 167.245.0.0/16
167.245.20.0/22 167.245.0.0/16
167.245.24.0/22 167.245.0.0/16
167.245.28.0/22 167.245.0.0/16
167.245.32.0/22 167.245.0.0/16
167.245.36.0/22 167.245.0.0/16
167.245.40.0/22 167.245.0.0/16
167.245.56.0/22 167.245.0.0/16
167.245.60.0/24 167.245.0.0/16
167.245.64.0/20 167.245.0.0/16
167.245.88.0/22 167.245.0.0/16
167.245.92.0/22 167.245.0.0/16
167.245.104.0/22 167.245.0.0/16
167.245.108.0/23 167.245.0.0/16
167.245.160.0/19 167.245.0.0/16
168.168.254.0/23 168.168.128.0/17
205.156.64.0/21 205.156.64.0/18
205.156.64.0/22 205.156.64.0/18
205.156.68.0/22 205.156.64.0/18
205.156.72.0/21 205.156.64.0/18
205.156.80.0/22 205.156.64.0/18
205.156.84.0/22 205.156.64.0/18
205.156.88.0/21 205.156.64.0/18
205.156.96.0/22 205.156.64.0/18
205.156.100.0/23 205.156.64.0/18
205.156.102.0/23 205.156.64.0/18
205.156.104.0/21 205.156.64.0/18
205.156.104.0/22 205.156.64.0/18
205.156.108.0/22 205.156.64.0/18
205.156.112.0/22 205.156.64.0/18
205.156.117.0/24 205.156.64.0/18
205.156.128.0/22 205.156.128.0/18
205.156.132.0/23 205.156.128.0/18
205.156.134.0/24 205.156.128.0/18
205.156.135.0/24 205.156.128.0/18
205.156.136.0/21 205.156.128.0/18
205.156.144.0/21 205.156.128.0/18
205.156.152.0/22 205.156.128.0/18
205.156.160.0/23 205.156.128.0/18
205.156.164.0/24 205.156.128.0/18
205.156.84.0/24 205.156.64.0/18
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 167.245.56.0/22 Announced
+ 167.245.60.0/24 Announced
+ 167.245.64.0/20 Announced
+ 167.245.88.0/22 Announced
+ 167.245.92.0/22 Announced
+ 205.156.72.0/21 Announced
+ 205.156.80.0/22 Announced
+ 205.156.84.0/22 Announced
- 205.156.84.0/24 Withdrawn
whois: 402603
IANA has recorded AS17161 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS17161\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: 17161
ASName: MMC
ASHandle: AS17161
RegDate: 2000-08-01
Updated: 2022-12-02
Ref: https://rdap.arin.net/registry/autnum/17161
OrgName: Marsh Inc.
OrgId: MARSHI-1
Address: 1166 Avenue of the Americas
City: New York
StateProv: NY
PostalCode: 10036
Country: US
RegDate: 2000-08-01
Updated: 2022-06-14
Ref: https://rdap.arin.net/registry/entity/MARSHI-1
OrgAbuseHandle: MMCAB-ARIN
OrgAbuseName: MMC-Abuse
OrgAbusePhone: +1-502-561-4600
OrgAbuseEmail: abuse@mmc.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/MMCAB-ARIN
OrgTechHandle: VIHLI-ARIN
OrgTechName: Vihlidal, Brian
OrgTechPhone: +1-502-561-4600
OrgTechEmail: brian.vihlidal@mmc.com
OrgTechRef: https://rdap.arin.net/registry/entity/VIHLI-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: PMC288-ARIN
OrgTechName: McGlynn, Patrick
OrgTechPhone: +1-201-284-3021
OrgTechEmail: patrick.mcglynn@mmc.com
OrgTechRef: https://rdap.arin.net/registry/entity/PMC288-ARIN
RTechHandle: PMC288-ARIN
RTechName: McGlynn, Patrick
RTechPhone: +1-201-284-3021
RTechEmail: patrick.mcglynn@mmc.com
RTechRef: https://rdap.arin.net/registry/entity/PMC288-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/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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