172.56.16.0/23

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 172.56.16.0/23

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 172.56.0.0/16

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

Hosted domains

There are 5 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
172.56.16.115	barrymoy.com	1
172.56.17.234	0096321.xyz	1
172.56.16.122	autosolve.biz	1
172.56.16.181	inventivetechsolutions.com	1
172.56.17.77	ttunited.net	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
54.157.25.71	AS14618 Amazon.com, Inc.	`0.55ms` from Ashburn, US
18.206.19.119	AS14618 Amazon.com, Inc.	`0.47ms` from Ashburn, US
101.43.150.23	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.76ms` from Beijing, CN
77.218.89.23	AS1257 Tele2 Sverige AB	`3.91ms` from Falkenberg, SE
200.58.160.39	AS25620 COTAS LTDA.	`10.44ms` from La Paz, BO
181.73.58.215	AS6535 Telmex Servicios Empresariales S.A.	`6.81ms` from Santiago, CL
170.231.155.71	AS263424 Fonelight Telecomunicações S/A	`6.77ms` from Sao Paulo, BR
39.26.38.199	AS4766 Korea Telecom	`1.56ms` from Seoul, KR
183.116.166.87	AS4766 Korea Telecom	`1.49ms` from Seoul, KR
125.152.163.87	AS4766 Korea Telecom	`1.98ms` from Seoul, KR
172.212.1.247	AS8075 Microsoft Corporation	`0.41ms` from Ashburn, US
4.156.128.39	AS8075 Microsoft Corporation	`0.42ms` from Ashburn, US
162.229.33.103	AS7018 AT&T Enterprises, LLC	`9.89ms` from Atlanta, US
123.123.182.199	AS4808 China Unicom Beijing Province Network	`3.62ms` from Beijing, CN
135.224.238.135	AS8075 Microsoft Corporation	`0.33ms` from Boydton, US
37.82.16.247	AS3320 Deutsche Telekom AG	`16.38ms` from Frankfurt am Main, DE
47.122.159.39	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.21ms` from Fuzhou, CN
187.173.227.55	AS8151 UNINET	`8.42ms` from Guadalajara, MX
183.3.149.7	AS4134 CHINANET-BACKBONE	`2.93ms` from Guangzhou, CN
191.100.130.151	AS27668 ETAPA EP	`6.38ms` from Guayaquil, EC
34.54.199.55	AS396982 Google LLC	`0.07ms` from Melbourne, AU
88.43.164.247	AS3269 Telecom Italia S.p.A.	`2.98ms` from Milan, IT
194.15.165.103	AS8767 M-net Telekommunikations GmbH	`4.92ms` from Munich, DE
175.200.255.7	AS4766 Korea Telecom	`6.57ms` from Seoul, KR
118.103.209.87	AS9976 Namincheon Brodcasting Co., Ltd.	`1.50ms` from Seoul, KR

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 172.56.16.213

traceroute to 172.56.16.213 (172.56.16.213): 7 hops max, 52 byte packets

4 [AS21928] 100.199.0.93 0.104 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Tieling, CN

On March 21st 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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