ASN AS13903 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS13903?

AS13903 is listed under Unitedlayer, 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.

AS13903 Unitedlayer, Inc. | IPGeolocation.io

ASN Lookup Tool

Unitedlayer, Inc. unitedlayer.com

US 2 Routes

AS Data

AS13903

AS13903 – Unitedlayer, Inc.

AS Number	13903
AS Name	UNITEDLAYER-2
Organization	Unitedlayer, Inc.(laer)
Country	US
Website	unitedlayer.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1999-09-08

ASN Intelligence API for production workflows

Use ASN data for AS13903 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
193.29.148.0/24	AS13903	Unitedlayer, Inc.	Mahle Behr GmbH & Co.Kg	256
193.29.149.0/24	AS13903	Unitedlayer, Inc.	Mahle Behr GmbH & Co.Kg	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:       13903
ASName:         UNITEDLAYER-2
ASHandle:       AS13903
RegDate:        1999-09-08
Updated:        2012-02-24    
Ref:            https://rdap.arin.net/registry/autnum/13903


OrgName:        Unitedlayer, Inc.
OrgId:          LAER
Address:        200 Paul Ave. Suite 100
City:           San Francisco
StateProv:      CA
PostalCode:     94103
Country:        US
RegDate:        2002-03-04
Updated:        2017-01-28
Comment:        Please follow our direction on how to contact
Comment:        UnitedLayer.
Comment:        Best Results first email noc@unitedlayer.com and provide appropiate
Comment:        and background information.
Comment:        Thanks, UL Team
Ref:            https://rdap.arin.net/registry/entity/LAER


OrgAbuseHandle: ABUSE175-ARIN
OrgAbuseName:   UnitedLayer Inc
OrgAbusePhone:  +1-415-349-2102 
OrgAbuseEmail:  abuse@unitedlayer.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE175-ARIN

OrgNOCHandle: IU15-ARIN
OrgNOCName:   UnitedLayer Inc
OrgNOCPhone:  +1-415-349-2102 
OrgNOCEmail:  noc@unitedlayer.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/IU15-ARIN

OrgTechHandle: IU15-ARIN
OrgTechName:   UnitedLayer Inc
OrgTechPhone:  +1-415-349-2102 
OrgTechEmail:  noc@unitedlayer.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IU15-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
AS8220	COLT Technology Services Group Limited	GB
AS1299	Arelion Sweden AB	SE

Upstreams

AS Number	Description	Country
AS8220	COLT Technology Services Group Limited	GB
AS1299	Arelion Sweden AB	SE

Contacts

Email Contacts

noc@unitedlayer.com

Abuse Contacts

abuse@unitedlayer.com