ASN AS19321 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS19321?

AS19321 is listed under University Medical Center.

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.

AS19321 University Medical Center

ASN Lookup Tool

University Medical Center teamumc.com

US 2 Routes

AS Data

AS19321

AS19321 – University Medical Center

AS Number	19321
AS Name	UMC-HEALTH-SYSTEM
Organization	University Medical Center(lchd)
Country	US
Website	teamumc.com
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2010-07-30

ASN Intelligence API for production workflows

Use ASN data for AS19321 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

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.21.252.0/23	AS19321	University Medical Center	University Medical Center	512
199.21.254.0/23	AS19321	University Medical Center	University Medical Center	512

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:       19321
ASName:         UMC-HEALTH-SYSTEM
ASHandle:       AS19321
RegDate:        2010-07-30
Updated:        2012-02-24    
Ref:            https://rdap.arin.net/registry/autnum/19321


OrgName:        University Medical Center
OrgId:          LCHD
Address:        602 Indiana Avenue
City:           Lubbock
StateProv:      TX
PostalCode:     79415
Country:        US
RegDate:        2010-05-14
Updated:        2021-07-26
Ref:            https://rdap.arin.net/registry/entity/LCHD


OrgAbuseHandle: NETWO9503-ARIN
OrgAbuseName:   NetworkTeam
OrgAbusePhone:  +1-806-775-9109 
OrgAbuseEmail:  itinfrastructurenetwork@umchealthsystem.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO9503-ARIN

OrgNOCHandle: NETWO9503-ARIN
OrgNOCName:   NetworkTeam
OrgNOCPhone:  +1-806-775-9109 
OrgNOCEmail:  itinfrastructurenetwork@umchealthsystem.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO9503-ARIN

OrgTechHandle: NETWO9503-ARIN
OrgTechName:   NetworkTeam
OrgTechPhone:  +1-806-775-9109 
OrgTechEmail:  itinfrastructurenetwork@umchealthsystem.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO9503-ARIN

OrgDNSHandle: NETWO9503-ARIN
OrgDNSName:   NetworkTeam
OrgDNSPhone:  +1-806-775-9109 
OrgDNSEmail:  itinfrastructurenetwork@umchealthsystem.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/NETWO9503-ARIN

OrgRoutingHandle: NETWO9503-ARIN
OrgRoutingName:   NetworkTeam
OrgRoutingPhone:  +1-806-775-9109 
OrgRoutingEmail:  itinfrastructurenetwork@umchealthsystem.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NETWO9503-ARIN

OrgTechHandle: ADMIN7527-ARIN
OrgTechName:   Admin
OrgTechPhone:  +1-806-775-9538 
OrgTechEmail:  christopher.hyatt@umchealthsystem.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ADMIN7527-ARIN

RNOCHandle: CASTL-ARIN
RNOCName:   Castle, Matt 
RNOCPhone:  +1-806-775-9109 
RNOCEmail:  cakeroyd@teamumc.com
RNOCRef:    https://rdap.arin.net/registry/entity/CASTL-ARIN

RAbuseHandle: CASTL-ARIN
RAbuseName:   Castle, Matt 
RAbusePhone:  +1-806-775-9109 
RAbuseEmail:  cakeroyd@teamumc.com
RAbuseRef:    https://rdap.arin.net/registry/entity/CASTL-ARIN

RTechHandle: CASTL-ARIN
RTechName:   Castle, Matt 
RTechPhone:  +1-806-775-9109 
RTechEmail:  cakeroyd@teamumc.com
RTechRef:    https://rdap.arin.net/registry/entity/CASTL-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
AS15164	Unite Private Networks LLC.	US
AS13359	LEARN	US
AS22645	LEARN	US

Upstreams

AS Number	Description	Country
AS15164	Unite Private Networks LLC.	US
AS13359	LEARN	US
AS22645	LEARN	US