This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS40740 3 More Specifics 3 Total Advertisements MASSMUTUALNETWORK, US
12.189.182.0/24 12.0.0.0/8
12.189.183.0/24 12.0.0.0/8
65.215.123.0/24 65.192.0.0/11
whois: 402590
IANA has recorded AS40740 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS40740\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: 40740
ASName: MASSMUTUALNETWORK
ASHandle: AS40740
RegDate: 2008-03-06
Updated: 2023-05-16
Ref: https://rdap.arin.net/registry/autnum/40740
OrgName: Massachusetts Mutual Life Insurance Company
OrgId: MMLI-8
Address: 1295 State Street
City: Springfield
StateProv: MA
PostalCode: 01111
Country: US
RegDate: 2000-03-20
Updated: 2021-07-22
Ref: https://rdap.arin.net/registry/entity/MMLI-8
OrgNOCHandle: NETWO4801-ARIN
OrgNOCName: Network Engineering
OrgNOCPhone: +1-413-744-8411
OrgNOCEmail: networkengineering@massmutual.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NETWO4801-ARIN
OrgTechHandle: NETWO4801-ARIN
OrgTechName: Network Engineering
OrgTechPhone: +1-413-744-8411
OrgTechEmail: networkengineering@massmutual.com
OrgTechRef: https://rdap.arin.net/registry/entity/NETWO4801-ARIN
OrgAbuseHandle: NETWO4801-ARIN
OrgAbuseName: Network Engineering
OrgAbusePhone: +1-413-744-8411
OrgAbuseEmail: networkengineering@massmutual.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/NETWO4801-ARIN
RTechHandle: NETWO4801-ARIN
RTechName: Network Engineering
RTechPhone: +1-413-744-8411
RTechEmail: networkengineering@massmutual.com
RTechRef: https://rdap.arin.net/registry/entity/NETWO4801-ARIN
RAbuseHandle: DDU10-ARIN
RAbuseName: Duquette, Debbie
RAbusePhone: +1-413-226-0124
RAbuseEmail: dduquette@massmutual.com
RAbuseRef: https://rdap.arin.net/registry/entity/DDU10-ARIN
RTechHandle: DDU10-ARIN
RTechName: Duquette, Debbie
RTechPhone: +1-413-226-0124
RTechEmail: dduquette@massmutual.com
RTechRef: https://rdap.arin.net/registry/entity/DDU10-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.
#