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AS31853 Express Messenger Systems, Inc.

Q: Why is WHOIS data shown for an ASN?

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

ASN Lookup Tool

Express Messenger Systems, Inc. ontrac.com

US 3 Routes

AS Data

AS31853

AS31853 – Express Messenger Systems, Inc.

AS Number	31853
AS Name	EMS-AS
Organization	Express Messenger Systems, Inc.(ems-73)
Country	US
Website	ontrac.com
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2004-01-09

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Use ASN data for AS31853 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
12.38.237.0/24	AS31853	Express Messenger Systems, Inc.	AT&T Enterprises, LLC	256
63.173.33.0/24	AS31853	Express Messenger Systems, Inc.	Express Messenger Systems	256
8.40.102.0/24	AS31853	Express Messenger Systems, Inc.	Level 3 Parent, LLC	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:       31853
ASName:         EMS-AS
ASHandle:       AS31853
RegDate:        2004-01-09
Updated:        2015-03-10    
Ref:            https://rdap.arin.net/registry/autnum/31853


OrgName:        Express Messenger Systems, Inc.
OrgId:          EMS-73
Address:        2501 Price Rd. #201
City:           Phoenix
StateProv:      AZ
PostalCode:     85286
Country:        US
RegDate:        2003-12-19
Updated:        2015-03-10
Ref:            https://rdap.arin.net/registry/entity/EMS-73


OrgAbuseHandle: DDS49-ARIN
OrgAbuseName:   Seidel, David Denton
OrgAbusePhone:  +1-602-333-4445 
OrgAbuseEmail:  dseidel@ontrac.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DDS49-ARIN

OrgTechHandle: DDS49-ARIN
OrgTechName:   Seidel, David Denton
OrgTechPhone:  +1-602-333-4445 
OrgTechEmail:  dseidel@ontrac.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DDS49-ARIN

RTechHandle: DDS49-ARIN
RTechName:   Seidel, David Denton
RTechPhone:  +1-602-333-4445 
RTechEmail:  dseidel@ontrac.com
RTechRef:    https://rdap.arin.net/registry/entity/DDS49-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
AS7018	AT&T Enterprises, LLC	US
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS1239	Cogent Communications, LLC	US
AS3356	Level 3 Parent, LLC	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US
AS174	Cogent Communications, LLC	US

Frequently Asked Questions

What is ASN AS31853?

ASN AS31853 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS31853?

AS31853 is listed under Express Messenger Systems, Inc..

What do peers, upstreams, and downstreams mean?

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 included here?

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

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.