172.56.54.0/23

AS21928 · T-Mobile USA, Inc.

Need more data or want to access it via API or data downloads? Sign up to get free access

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:        [email protected]
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:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 172.56.54.0/23

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 no domains currently hosted on this ASN.

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
123.127.134.71	AS4808 China Unicom Beijing Province Network	`5.42ms` from Beijing, CN
211.88.20.151	AS9306 CIETNET	`4.92ms` from Beijing, CN
14.176.233.7	AS45899 VNPT Corp	`7.87ms` from Da Nang, VN
178.201.30.151	AS3209 Vodafone GmbH	`6.37ms` from Frankfurt am Main, DE
116.108.0.71	AS7552 Viettel Group	`0.86ms` from Ho Chi Minh City, VN
20.11.194.135	AS8075 Microsoft Corporation	`0.42ms` from Melbourne, AU
94.162.155.199	AS1267 WIND TRE S.P.A.	`13.11ms` from Milan, IT
142.68.249.151	AS855 Bell Canada	`14.89ms` from Montreal, CA
60.143.79.183	AS17676 SoftBank Corp.	`3.81ms` from Osaka, JP
178.65.237.55	AS12389 PJSC Rostelecom	`1.57ms` from Saint Petersburg, RU
42.82.148.103	AS38669 LG HelloVision Corp.	`6.91ms` from Seoul, KR
106.120.22.167	AS4847 China Networks Inter-Exchange	`2.73ms` from Tianjin, CN
126.66.1.167	AS17676 SoftBank Corp.	`4.38ms` from Tokyo, JP
15.72.71.7	AS54680 HP Inc.	`2.43ms` from Dallas, US
43.251.176.135	AS45804 MEGHBELA BROADBAND	`0.78ms` from Kolkata, IN
97.189.112.87	AS6167 Verizon Business	`7.64ms` from Los Angeles, US
91.132.107.215	AS51904 Utex-Telecom LLC	`2.43ms` from Moscow, RU
97.204.22.87	AS6167 Verizon Business	`15.18ms` from New York City, US
152.166.231.71	AS28118 ALTICE DOMINICANA S.A.	`2.74ms` from Santo Domingo, DO
116.87.141.231	AS55430 Starhub Ltd	`1.60ms` from Singapore, SG
189.231.165.135	AS8151 UNINET	`11.73ms` from Tucson, US
97.227.149.247	AS6167 Verizon Business	`9.93ms` from Atlanta, US
35.239.75.151	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
23.248.180.39	AS21859 Zenlayer Inc	`0.04ms` from Doha, QA
14.188.51.167	AS45899 VNPT Corp	`2.58ms` from Hanoi, VN

Traceroute

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

traceroute -a -n -q1 -m6 172.56.54.109

traceroute to 172.56.54.109 (172.56.54.109): 6 hops max, 52 byte packets

1 [AS31898] 140.204.222.136 0.084 ms

2 [AS21928] 66.94.0.89 0.437 ms

3 [AS21928] 66.94.0.88 0.522 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On January 30th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales