172.58.0.0/21

AS21928 · T-Mobile USA, Inc.

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Summary

Country	United States
Domain	t-mobile.com
ASN	AS21928
Registry	ARIN
ID	TMO9

WHOIS Details

NetHandle:      NET-172-32-0-0-1
OrgID:          TMOBI
Parent:         NET-172-0-0-0-0
NetName:        TMO9
NetRange:       172.32.0.0 - 172.63.255.255
NetType:        allocation
OriginAS:       21928
Comment:        Geofeed https://raw.githubusercontent.com/tmobile/tmus-geofeed/main/tmus-geo-ip.txt
RegDate:        2012-09-18
Updated:        2020-11-18
Source:         ARIN


OrgID:          TMOBI
OrgName:        T-Mobile USA, Inc.
CanAllocate:    
Street:         12920 SE 38th Street
City:           Bellevue
State/Prov:     WA
Country:        US
PostalCode:     98006
RegDate:        2003-01-02
Updated:        2017-01-28
OrgAdminHandle: DNSAD11-ARIN
OrgTechHandle:  DNSAD11-ARIN
OrgAbuseHandle: ABUSE4857-ARIN
Source:         ARIN


POCHandle:      DNSAD11-ARIN
IsRole:         Y
LastName:       DNS Administrators
FirstName:      
Street:         12920 SE 38th Street
City:           Bellevue
State/Prov:     WA
Country:        US
PostalCode:     98027
RegDate:        2003-01-02
Updated:        2025-01-09
OfficePhone:    +1-888-662-4662
Mailbox:        ARINtechcontact@t-mobile.com
Source:         ARIN


POCHandle:      ABUSE4857-ARIN
IsRole:         Y
LastName:       abuse
FirstName:      
Street:         12920 SE 38th Street
City:           Bellevue
State/Prov:     WA
Country:        US
PostalCode:     98006
RegDate:        2014-09-23
Updated:        2025-05-27
OfficePhone:    +1-888-662-4662
Mailbox:        abuse@t-mobile.com
Source:         ARIN

Hosted domains

There are 7 domain names hosted across 7 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
172.58.4.237	authdemo.cloud	1
172.58.7.80	ixice.com	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
87.233.174.37	AS15703 TrueServer BV AS number	`0.46ms` from Amsterdam, NL
198.8.35.245	AS11787 Supreme Court of Pennsylvania	`10.11ms` from Ashburn, US
40.117.62.37	AS8075 Microsoft Corporation	`0.40ms` from Ashburn, US
194.31.159.37	AS201817 VK Tech Kazakhstan LLP	`1.13ms` from Astana, KZ
94.68.185.149	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`10.37ms` from Athens, GR
104.168.124.5	AS36352 HostPapa	`0.10ms` from Buffalo, US
50.90.207.229	AS33363 Charter Communications, Inc	`9.07ms` from Chicago, US
195.71.242.133	AS6805 Telefonica Germany GmbH & Co.OHG	`1.04ms` from Duesseldorf, DE
14.213.8.21	AS4134 CHINANET-BACKBONE	`2.42ms` from Guangzhou, CN
181.115.37.53	AS14754 TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA	`6.95ms` from Guatemala City, GT
27.75.47.197	AS7552 Viettel Group	`3.64ms` from Ho Chi Minh City, VN
60.243.172.21	AS17488 Hathway IP Over Cable Internet	`6.95ms` from Hyderabad, IN
88.5.193.165	AS3352 TELEFONICA DE ESPANA S.A.U.	`5.90ms` from Madrid, ES
31.195.113.117	AS3269 Telecom Italia S.p.A.	`6.08ms` from Milan, IT
149.18.185.69	AS64286 LogicWeb Inc.	`1.70ms` from New York City, US
219.94.162.101	AS9371 SAKURA Internet Inc.	`0.31ms` from Osaka, JP
200.201.180.245	AS17222 MUNDIVOX DO BRASIL LTDA	`0.57ms` from Rio de Janeiro, BR
64.80.29.133	AS7029 Windstream Communications LLC	`5.89ms` from Secaucus, US
60.112.192.117	AS17676 SoftBank Corp.	`2.90ms` from Tokyo, JP
31.182.3.245	AS16342 Toya sp.z.o.o	`1.93ms` from Warsaw, PL
152.53.242.69	AS214996 netcup GmbH	`0.97ms` from Ashburn, US
194.250.149.213	AS3215 Orange S.A.	`2.05ms` from Aubervilliers, FR
39.105.37.85	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.93ms` from Beijing, CN
210.214.47.165	AS9583 Sify Limited	`1.36ms` from Bengaluru, IN
117.242.110.117	AS9829 National Internet Backbone	`12.43ms` from Bengaluru, IN

Traceroute

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

traceroute -a -n -q1 -m5 172.58.5.132

traceroute to 172.58.5.132 (172.58.5.132): 5 hops max, 52 byte packets

1 [AS15169] 142.251.253.252 92.588 ms

2 [AS15169] 192.178.246.192 92.978 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Santiago, CL

On August 28th 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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