ASN AS14203 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS14203?

AS14203 is listed under Juniper Networks, 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.

AS14203 Juniper Networks, Inc.

ASN Lookup Tool

Juniper Networks, Inc. juniper.net

US 26 Routes

AS Data

AS14203

AS14203 – Juniper Networks, Inc.

AS Number	14203
AS Name	JUNIPER-NETWORKS
Organization	Juniper Networks, Inc.(junipe)
Country	US
Website	juniper.net
Number of IPv4 Routes	21
Number of IPv6 Routes	5
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1999-11-09

ASN Intelligence API for production workflows

Use ASN data for AS14203 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
66.129.224.0/22	AS14203	Juniper Networks, Inc.	Juniper Networks, Inc.	1024
67.91.205.0/24	AS14203	Juniper Networks, Inc.	Juniper Networks, Inc.	256
66.129.242.0/24	AS14203	Juniper Networks, Inc.	Juniper Networks, Inc.	256
12.0.126.0/23	AS14203	Juniper Networks, Inc.	JUNIPER NETWORKS	512
66.129.241.0/24	AS14203	Juniper Networks, Inc.	Juniper Networks, Inc.	256
66.129.246.0/24	AS14203	Juniper Networks, Inc.	Juniper Networks, Inc.	256
66.129.239.0/24	AS14203	Juniper Networks, Inc.	Juniper Networks, Inc.	256
66.129.232.0/23	AS14203	Juniper Networks, Inc.	Juniper Networks, Inc.	512
66.129.250.0/24	AS14203	Juniper Networks, Inc.	Juniper Networks, Inc.	256
66.129.237.0/24	AS14203	Juniper Networks, Inc.	Juniper Networks, 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:       14203
ASName:         JUNIPER-NETWORKS
ASHandle:       AS14203
RegDate:        1999-11-09
Updated:        2018-08-03    
Ref:            https://rdap.arin.net/registry/autnum/14203


OrgName:        Juniper Networks, Inc.
OrgId:          JUNIPE
Address:        Headquarters
Address:        1133 Innovation Way
City:           Sunnyvale
StateProv:      CA
PostalCode:     94089
Country:        US
RegDate:        1996-07-09
Updated:        2015-02-24
Ref:            https://rdap.arin.net/registry/entity/JUNIPE


OrgTechHandle: JNATC-ARIN
OrgTechName:   Juniper Networks ARIN Technical Coordinator
OrgTechPhone:  +1-408-745-2000 
OrgTechEmail:  arin-technical@juniper.net
OrgTechRef:    https://rdap.arin.net/registry/entity/JNATC-ARIN

OrgNOCHandle: JNNSG-ARIN
OrgNOCName:   Juniper Networks Network Services Group
OrgNOCPhone:  +1-408-745-2000 
OrgNOCEmail:  arin-noc@juniper.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/JNNSG-ARIN

OrgAbuseHandle: JNSACG-ARIN
OrgAbuseName:   Juniper Networks Systems Abuse Coordination Group
OrgAbusePhone:  +1-408-745-2000 
OrgAbuseEmail:  abuse@juniper.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/JNSACG-ARIN

RAbuseHandle: JNSACG-ARIN
RAbuseName:   Juniper Networks Systems Abuse Coordination Group
RAbusePhone:  +1-408-745-2000 
RAbuseEmail:  abuse@juniper.net
RAbuseRef:    https://rdap.arin.net/registry/entity/JNSACG-ARIN

RTechHandle: JNATC-ARIN
RTechName:   Juniper Networks ARIN Technical Coordinator
RTechPhone:  +1-408-745-2000 
RTechEmail:  arin-technical@juniper.net
RTechRef:    https://rdap.arin.net/registry/entity/JNATC-ARIN

RNOCHandle: JNATC-ARIN
RNOCName:   Juniper Networks ARIN Technical Coordinator
RNOCPhone:  +1-408-745-2000 
RNOCEmail:  arin-technical@juniper.net
RNOCRef:    https://rdap.arin.net/registry/entity/JNATC-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
AS58511	Anycast Global Backbone	AU
AS24482	SG.GS	SG
AS6939	Hurricane Electric LLC	US
AS11404	Wave Broadband	US
AS4826	Vocus Connect International Backbone	AU
AS209	CenturyLink Communications, LLC	US
AS2914	NTT America, Inc.	US
AS33667	Comcast Cable Communications, LLC	US
AS199524	G-Core Labs S.A.	LU
AS36236	NetActuate, Inc	US

Upstreams

AS Number	Description	Country
AS33667	Comcast Cable Communications, LLC	US
AS7018	AT&T Enterprises, LLC	US
AS7015	Comcast Cable Communications, LLC	US
AS20055	Wholesail networks LLC	US
AS33651	Comcast Cable Communications, LLC	US
AS6939	Hurricane Electric LLC	US
AS209	CenturyLink Communications, LLC	US
AS2914	NTT America, Inc.	US
AS33650	Comcast Cable Communications, LLC	US
AS22773	Cox Communications Inc.	US