199.21.254.0/23

AS19321 · University Medical Center

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Summary

Country	United States
Domain	umcaz.edu
ASN	AS19321
Registry	ARIN
ID	UMC-HEALTH-SYSTEM

WHOIS Details

NetHandle:      NET-199-21-252-0-1
OrgID:          LCHD
Parent:         NET-199-0-0-0-0
NetName:        UMC-HEALTH-SYSTEM
NetRange:       199.21.252.0 - 199.21.255.255
NetType:        allocation
OriginAS:       19321
RegDate:        2010-08-23
Updated:        2021-12-14
Source:         ARIN


OrgID:          LCHD
OrgName:        University Medical Center
CanAllocate:    
Street:         602 Indiana Avenue
City:           Lubbock
State/Prov:     TX
Country:        US
PostalCode:     79415
RegDate:        2010-05-14
Updated:        2021-07-26
OrgAdminHandle: NETWO9503-ARIN
OrgTechHandle:  ADMIN7527-ARIN
OrgTechHandle:  NETWO9503-ARIN
OrgAbuseHandle: NETWO9503-ARIN
OrgNOCHandle:   NETWO9503-ARIN
OrgRoutingHandle:   NETWO9503-ARIN
OrgDNSHandle:   NETWO9503-ARIN
Source:         ARIN


POCHandle:      NETWO9503-ARIN
IsRole:         Y
LastName:       NetworkTeam
FirstName:      
Street:         602 Indiana Ave
City:           Lubbock
State/Prov:     TX
Country:        US
PostalCode:     79415
RegDate:        2021-07-06
Updated:        2022-07-26
OfficePhone:    +1-806-775-9109
Mailbox:        itinfrastructurenetwork@umchealthsystem.com
Source:         ARIN


POCHandle:      ADMIN7527-ARIN
IsRole:         Y
LastName:       Admin
FirstName:      
Street:         602 Indiana Ave
City:           Lubbock
State/Prov:     TX
Country:        US
PostalCode:     79415
RegDate:        2020-07-24
Updated:        2022-07-26
OfficePhone:    +1-806-775-9538
Mailbox:        christopher.hyatt@umchealthsystem.com
Source:         ARIN

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

3 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
199.21.254.242	AS19321 University Medical Center	`9.07ms` from Dallas, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
77.170.236.119	AS1136 KPN B.V.	`1.18ms` from Amsterdam, NL
137.81.1.23	AS3128 University of Wisconsin System	`14.15ms` from Chicago, US
169.48.242.103	AS36351 IBM Cloud	`0.82ms` from Dallas, US
216.62.21.23	AS7018 AT&T Enterprises, LLC	`0.98ms` from Dallas, US
87.165.179.231	AS3320 Deutsche Telekom AG	`5.32ms` from Duesseldorf, DE
37.78.189.103	AS12389 PJSC Rostelecom	`1.24ms` from Krasnodar, RU
45.5.58.39	AS266757 SATELITAL TELECOMUNICACIONES S.A.C	`0.36ms` from Lima, PE
82.0.217.23	AS5089 Virgin Media Limited	`5.97ms` from London, GB
94.11.109.183	AS5607 Sky UK Limited	`6.34ms` from London, GB
109.238.90.135	AS201706 SERVICEPIPE LLC	`0.55ms` from Moscow, RU
107.20.134.151	AS14618 Amazon.com, Inc.	`0.15ms` from Reston, US
54.165.211.167	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
186.35.161.135	AS6535 Telmex Servicios Empresariales S.A.	`6.19ms` from Santiago, CL
210.164.15.183	AS4713 NTT Communications Corporation	`15.57ms` from Tokyo, JP
206.204.240.7	AS395127 Sunwire Inc.	`6.13ms` from Toronto, CA
184.144.87.87	AS577 Bell Canada	`4.95ms` from Toronto, CA
143.176.238.135	AS13127 Odido Netherlands B.V.	`6.33ms` from Amsterdam, NL
24.235.90.103	AS14291 Antietam Broadband	`2.16ms` from Ashburn, US
37.6.66.183	AS25472 Nova Telecommunications & Media Single Member S.A	`3.46ms` from Athens, GR
176.92.109.55	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`4.64ms` from Athens, GR
43.208.60.151	AS16509 Amazon.com, Inc.	`2.12ms` from Bangkok, TH
43.208.177.199	AS16509 Amazon.com, Inc.	`1.87ms` from Bangkok, TH
14.111.124.23	AS4134 CHINANET-BACKBONE	`6.23ms` from Chongqing, CN
27.252.28.215	AS9500 One New Zealand Group Limited	`13.19ms` from Christchurch, NZ
86.170.21.215	AS2856 British Telecommunications PLC	`1.60ms` from London, GB

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -m6 199.21.255.206

traceroute to 199.21.255.206 (199.21.255.206): 6 hops max, 52 byte packets

1 [AS200698] 185.99.2.1 0.344 ms

2 [] 185.12.77.105 1.768 ms

3 [] 193.188.137.22 2.638 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Novi Travnik, BA

On September 4th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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