172.56.30.0/23

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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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
43.138.57.23	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.77ms` from Beijing, CN
24.192.206.39	AS12083 WideOpenWest Finance LLC	`10.53ms` from Chicago, US
104.43.235.199	AS8075 Microsoft Corporation	`0.29ms` from Des Moines, US
109.68.101.23	AS8878 nfon AG	`0.49ms` from Frankfurt am Main, DE
223.122.134.7	AS137872 China Mobile Hong Kong Company Limited	`2.65ms` from Hong Kong, HK
95.56.52.23	AS9198 JSC Kazakhtelecom	`4.77ms` from Karagandy, KZ
132.204.222.183	AS376 Reseau d'Informations Scientifiques du Quebec (RISQ Inc.)	`1.22ms` from Montreal, CA
124.243.151.183	AS136907 HUAWEI CLOUDS	`0.56ms` from Singapore, SG
36.212.21.87	AS9808 China Mobile Communications Group Co., Ltd.	`1.63ms` from Suzhou, CN
61.192.139.199	AS10013 FreeBit Co.,Ltd.	`8.51ms` from Tokyo, JP
221.113.72.135	AS4685 Asahi Net	`2.49ms` from Tokyo, JP
73.201.231.231	AS7922 Comcast Cable Communications, LLC	`8.66ms` from Ashburn, US
184.17.105.135	AS5650 Frontier Communications of America, Inc.	`7.72ms` from Chicago, US
34.27.250.55	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
129.204.151.7	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.75ms` from Guangzhou, CN
119.112.0.135	AS4837 CHINA UNICOM China169 Backbone	`12.02ms` from Liaoyang, CN
38.42.47.119	AS395354 Starry, Inc.	`10.06ms` from Los Angeles, US
97.170.30.119	AS6167 Verizon Business	`10.91ms` from Los Angeles, US
189.152.92.23	AS8151 UNINET	`12.95ms` from Santiago de Queretaro, MX
218.37.81.215	AS17864 SK Broadband Co Ltd	`1.87ms` from Seoul, KR
73.60.77.231	AS7922 Comcast Cable Communications, LLC	`7.66ms` from Boston, US
65.30.170.231	AS10796 Charter Communications Inc	`6.23ms` from Chicago, US
2.161.51.87	AS3320 Deutsche Telekom AG	`14.31ms` from Frankfurt am Main, DE
1.53.71.71	AS18403 FPT Telecom Company	`9.89ms` from Hanoi, VN
72.197.229.103	AS22773 Cox Communications Inc.	`7.12ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -f4 -m10 172.56.30.204

traceroute to 172.56.30.204 (172.56.30.204): 10 hops max, 52 byte packets

4 [AS63949] 173.230.159.133 0.346 ms

5 [AS20940] 23.203.158.50 0.679 ms

6 [AS20940] 23.207.232.33 0.67 ms

7 [AS21928] 66.94.0.36 0.819 ms

8 *

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Measurement taken from

IPinfo ProbeNet in Santa Clara, US

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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