ASN Lookup Tool

John Muir Health johnmuirhealth.com US US 3 Routes

AS Data

AS19312

AS19312 – John Muir Health

AS Number 19312
AS Name JOHN-MUIR-HEALTH
Organization John Muir Health(jmh-5)
Country US
Website johnmuirhealth.com
Number of IPv4 Routes 3
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 2006-06-28

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Use ASN data for AS19312 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
206.107.211.0/24 256
50.59.177.0/24 256
12.25.162.0/24 256

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:       19312
ASName:         JOHN-MUIR-HEALTH
ASHandle:       AS19312
RegDate:        2006-06-28
Updated:        2021-01-19    
Ref:            https://rdap.arin.net/registry/autnum/19312


OrgName:        John Muir Health
OrgId:          JMH-5
Address:        1400 Treat Blvd.
City:           Walnut Creek
StateProv:      CA
PostalCode:     94596
Country:        US
RegDate:        2006-06-16
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/JMH-5


OrgNOCHandle: NOC2160-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-925-947-4466 
OrgNOCEmail:  ops2@johnmuirhealth.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC2160-ARIN

OrgTechHandle: JHA244-ARIN
OrgTechName:   Hardy, Jeremy 
OrgTechPhone:  +1-925-947-5349 
OrgTechEmail:  jeremy.hardy@johnmuirhealth.com
OrgTechRef:    https://rdap.arin.net/registry/entity/JHA244-ARIN

OrgAbuseHandle: JHA244-ARIN
OrgAbuseName:   Hardy, Jeremy 
OrgAbusePhone:  +1-925-947-5349 
OrgAbuseEmail:  jeremy.hardy@johnmuirhealth.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/JHA244-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
AS3356 Level 3 Parent, LLC US

Upstreams

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

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Frequently Asked Questions

ASN AS19312 is an Autonomous System Number used to identify a network for BGP internet routing.
AS19312 is listed under John Muir Health.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
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.