ASN AS40737 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS40737?

AS40737 is listed under EMF Inc..

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.

AS40737 EMF Inc. | IPGeolocation.io

ASN Lookup Tool

EMF Inc. emfinc.com

US 1 Routes

AS Data

AS40737

AS40737 – EMF Inc.

AS Number	40737
AS Name	EMFINC-ASN1
Organization	EMF Inc.(emfin-1)
Country	US
Website	emfinc.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2008-03-05

ASN Intelligence API for production workflows

Use ASN data for AS40737 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
204.19.0.0/24	AS40737	EMF Inc.	EMF Inc.	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:       40737
ASName:         EMFINC-ASN1
ASHandle:       AS40737
RegDate:        2008-03-05
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/40737


OrgName:        EMF Inc.
OrgId:          EMFIN-1
Address:        60 Foundry Street
City:           Keene
StateProv:      NH
PostalCode:     03431
Country:        US
RegDate:        2007-06-11
Updated:        2021-10-08
Ref:            https://rdap.arin.net/registry/entity/EMFIN-1


OrgAbuseHandle: TECHN569-ARIN
OrgAbuseName:   Technical Support
OrgAbusePhone:  +1-603-352-8400 
OrgAbuseEmail:  techsupport@emfinc.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/TECHN569-ARIN

OrgTechHandle: TECHN569-ARIN
OrgTechName:   Technical Support
OrgTechPhone:  +1-603-352-8400 
OrgTechEmail:  techsupport@emfinc.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TECHN569-ARIN

OrgNOCHandle: RGO61-ARIN
OrgNOCName:   Gogolen, Robert 
OrgNOCPhone:  +1-603-357-9442 
OrgNOCEmail:  bobg@emfinc.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/RGO61-ARIN

OrgAbuseHandle: RGO61-ARIN
OrgAbuseName:   Gogolen, Robert 
OrgAbusePhone:  +1-603-357-9442 
OrgAbuseEmail:  bobg@emfinc.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/RGO61-ARIN

OrgTechHandle: JTB17-ARIN
OrgTechName:   Berntsen, Jeffrey T.
OrgTechPhone:  +1-603-352-8400 
OrgTechEmail:  jeffb@emfinc.com
OrgTechRef:    https://rdap.arin.net/registry/entity/JTB17-ARIN

OrgNOCHandle: TECHN569-ARIN
OrgNOCName:   Technical Support
OrgNOCPhone:  +1-603-352-8400 
OrgNOCEmail:  techsupport@emfinc.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/TECHN569-ARIN

RAbuseHandle: TECHN569-ARIN
RAbuseName:   Technical Support
RAbusePhone:  +1-603-352-8400 
RAbuseEmail:  techsupport@emfinc.com
RAbuseRef:    https://rdap.arin.net/registry/entity/TECHN569-ARIN

RTechHandle: JTB17-ARIN
RTechName:   Berntsen, Jeffrey T.
RTechPhone:  +1-603-352-8400 
RTechEmail:  jeffb@emfinc.com
RTechRef:    https://rdap.arin.net/registry/entity/JTB17-ARIN

RNOCHandle: TECHN569-ARIN
RNOCName:   Technical Support
RNOCPhone:  +1-603-352-8400 
RNOCEmail:  techsupport@emfinc.com
RNOCRef:    https://rdap.arin.net/registry/entity/TECHN569-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
AS11351	Charter Communications Inc	US
AS13977	Fidium	US

Upstreams

AS Number	Description	Country
AS11351	Charter Communications Inc	US
AS13977	Fidium	US