ASN AS40740 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS40740?

AS40740 is listed under Massachusetts Mutual Life Insurance Company.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS40740 Massachusetts Mutual Life Insurance Company

ASN Lookup Tool

Massachusetts Mutual Life Insurance Company massmutual.com

US 3 Routes

AS Data

AS40740

AS40740 – Massachusetts Mutual Life Insurance Company

AS Number	40740
AS Name	MASSMUTUALNETWORK
Organization	Massachusetts Mutual Life Insurance Company(mmli-8)
Country	US
Website	massmutual.com
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2008-03-06

ASN Intelligence API for production workflows

Use ASN data for AS40740 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
12.189.183.0/24	AS40740	Massachusetts Mutual Life Insurance Company	Massachusetts Mutual Life Insurance Company	256
12.189.182.0/24	AS40740	Massachusetts Mutual Life Insurance Company	Massachusetts Mutual Life Insurance Company	256
65.215.123.0/24	AS40740	Massachusetts Mutual Life Insurance Company	Massachusetts Mutual Life Insurance Company	256

Raw Whois Response

#
# 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

OrgAbuseHandle: NETWO4801-ARIN
OrgAbuseName:   Network Engineering
OrgAbusePhone:  +1-413-744-8411 
OrgAbuseEmail:  networkengineering@massmutual.com
OrgAbuseRef:    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

RTechHandle: DDU10-ARIN
RTechName:   Duquette, Debbie 
RTechPhone:  +1-413-226-0124 
RTechEmail:  dduquette@massmutual.com
RTechRef:    https://rdap.arin.net/registry/entity/DDU10-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: NETWO4801-ARIN
RTechName:   Network Engineering
RTechPhone:  +1-413-744-8411 
RTechEmail:  networkengineering@massmutual.com
RTechRef:    https://rdap.arin.net/registry/entity/NETWO4801-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.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS13649	Flexential Colorado Corp.	US

Upstreams

AS Number	Description	Country
AS13649	Flexential Colorado Corp.	US