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:      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


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

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 6 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
172.58.0.203	puppercult.org	1
172.58.4.237	authdemo.cloud	1
172.58.1.116	michaelstaar.com	1
172.58.1.29	baileyverse.com	1
172.58.7.80	ixice.com	1
172.58.3.217	brownbizventures.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
141.165.5.85	AS18759 Georgia Southern University	`9.30ms` from Atlanta, US
149.120.10.197	AS26725 Liberty Communications	`9.89ms` from Chicago, US
52.31.177.101	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
207.57.246.21	AS54801 Zillion Network Inc.	`1.67ms` from Hong Kong, HK
46.141.77.37	AS49524 Wolnet SRL	`3.73ms` from Milan, IT
153.35.173.165	AS140716 UNICOM JiangSu WuXi IDC network	`3.67ms` from Nanjing, CN
96.97.244.69	AS7922 Comcast Cable Communications, LLC	`3.15ms` from Secaucus, US
117.186.110.133	AS24400 Shanghai Mobile Communications Co.,Ltd.	`2.70ms` from Shanghai, CN
62.146.182.21	AS40021 Contabo Inc.	`0.19ms` from St. Louis, US
37.2.172.165	AS1257 Tele2 Sverige AB	`0.68ms` from Stockholm, SE
113.232.48.213	AS4837 CHINA UNICOM China169 Backbone	`7.75ms` from Tieling, CN
36.129.32.149	AS56044 China Mobile communications corporation	`4.72ms` from Tieling, CN
13.192.99.197	AS16509 Amazon.com, Inc.	`0.22ms` from Tokyo, JP
13.193.117.53	AS16509 Amazon.com, Inc.	`0.28ms` from Tokyo, JP
61.90.171.69	AS7470 TRUE INTERNET Co.,Ltd.	`0.90ms` from Bangkok, TH
191.191.143.21	AS28573 Claro NXT Telecomunicacoes Ltda	`3.37ms` from Brasilia, BR
104.231.167.229	AS10796 Charter Communications Inc	`15.73ms` from Columbus, US
184.178.74.165	AS63182 RapidScale, Inc	`0.21ms` from Dallas, US
20.15.175.101	AS8075 Microsoft Corporation	`0.19ms` from Des Moines, US
195.71.242.133	AS6805 Telefonica Germany GmbH & Co.OHG	`1.97ms` from Duesseldorf, DE
135.125.141.5	AS16276 OVH SAS	`0.12ms` from Frankfurt am Main, DE
8.217.51.165	AS45102 Alibaba (US) Technology Co., Ltd.	`0.75ms` from Hong Kong, HK
5.42.248.181	AS35753 ITC AS number	`1.29ms` from Jeddah, SA
160.119.152.5	AS328214 Bioniq (Pty) Ltd	`0.20ms` from Johannesburg, ZA
121.122.53.165	AS9534 Binariang Berhad	`3.24ms` from Kuala Lumpur, MY

Traceroute

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

traceroute -a -n -q1 -f4 -m7 172.58.6.58

traceroute to 172.58.6.58 (172.58.6.58): 7 hops max, 52 byte packets

4 [AS21928] 100.199.0.57 0.057 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Liuzhou, CN

On March 20th 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.

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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