172.58.0.0/21

AS21928 · T-Mobile USA, Inc.

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Summary

Country	United States
Domain	t-mobile.com
ASN	AS21928
Parent Range	172.32.0.0/11
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
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:      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


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:        2026-01-08
OfficePhone:    +1-888-662-4662
Mailbox:        ARINtechcontact@t-mobile.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 172.58.0.0/21

Range	ASN	Company	Num of IPs
172.32.0.0/11	AS21928	T-Mobile USA, Inc.	2,097,152

Nearby Ranges

BGP prefixes that overlap with 172.58.0.0/16

Range	ASN	Company	Num of IPs
172.32.0.0/11	AS21928	T-Mobile USA, Inc.	2,097,152

Hosted domains

There are 8 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
172.58.3.158	tux.systems	3
172.58.4.237	authdemo.cloud	1
172.58.1.29	baileyverse.com	1
172.58.0.203	puppercult.org	1
172.58.7.80	ixice.com	1
172.58.1.116	michaelstaar.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

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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
213.159.19.165	AS62353 Eurofiber Cloud Infra B.V.	`1.80ms` from Amsterdam, NL
190.185.144.197	AS27983 Red Intercable Digital S.A.	`9.80ms` from Buenos Aires, AR
69.132.170.85	AS11426 Charter Communications Inc	`6.58ms` from Charlotte, US
8.9.96.133	AS32182 Grange Mutual Casualty Co.	`7.36ms` from Cincinnati, US
217.86.196.117	AS3320 Deutsche Telekom AG	`4.41ms` from Duesseldorf, DE
87.163.164.117	AS3320 Deutsche Telekom AG	`2.44ms` from Duesseldorf, DE
91.15.88.37	AS3320 Deutsche Telekom AG	`11.80ms` from Frankfurt am Main, DE
106.52.76.37	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.03ms` from Guangzhou, CN
2.166.34.149	AS3320 Deutsche Telekom AG	`14.16ms` from Hamburg, DE
223.18.247.213	AS9304 HGC Global Communications Limited	`1.65ms` from Hong Kong, HK
110.14.82.5	AS9318 SK Broadband Co Ltd	`1.70ms` from Incheon, KR
82.68.55.21	AS13037 Zen Internet Ltd	`1.92ms` from London, GB
101.186.131.213	AS1221 Telstra Limited	`2.58ms` from Melbourne, AU
189.251.34.197	AS8151 UNINET	`2.31ms` from Mexico City, MX
69.201.201.165	AS12271 Charter Communications Inc	`3.79ms` from New York City, US
64.80.29.133	AS7029 Windstream Communications LLC	`5.88ms` from New York City, US
125.13.71.117	AS9824 JCOM Co., Ltd.	`13.73ms` from Osaka, JP
119.165.234.213	AS4837 CHINA UNICOM China169 Backbone	`1.22ms` from Qingdao, CN
189.123.68.101	AS28573 Claro NXT Telecomunicacoes Ltda	`10.33ms` from Sao Paulo, BR
49.235.30.37	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.74ms` from Shanghai, CN
60.112.192.117	AS17676 SoftBank Corp.	`2.83ms` from Tokyo, JP
154.254.214.69	AS36947 Telecom Algeria	`13.40ms` from Algiers, DZ
193.35.218.5	AS15743 net.de AG	`12.33ms` from Amsterdam, NL
185.228.176.37	AS39614 Dawico Deutschland GmbH	`0.58ms` from Berlin, DE
173.13.85.165	AS7922 Comcast Cable Communications, LLC	`7.53ms` from Boston, US

Traceroute

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

traceroute -a -n -q1 -f5 -m12 172.58.4.100

traceroute to 172.58.4.100 (172.58.4.100): 12 hops max, 52 byte packets

5 [AS63949] 45.79.12.101 0.541 ms

6 [AS20940] 23.203.147.38 0.816 ms

7 [AS20940] 23.209.172.96 1.054 ms

8 [AS20940] 23.209.172.101 0.944 ms

9 [AS21928] 66.94.2.114 4.253 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Richardson, US

On January 19th 2026

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.

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