172.56.66.0/23

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:      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:        2025-01-09
OfficePhone:    +1-888-662-4662
Mailbox:        ARINtechcontact@t-mobile.com
Source:         ARIN

Hosted domains

There are 6 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
172.56.66.190	kevinsauls.com	2
172.56.67.0	choquettefamily.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
20.8.37.7	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
98.233.199.87	AS7922 Comcast Cable Communications, LLC	`8.84ms` from Ashburn, US
24.1.75.167	AS7922 Comcast Cable Communications, LLC	`6.62ms` from Chicago, US
61.128.192.151	AS4134 CHINANET-BACKBONE	`1.17ms` from Chongqing, CN
93.224.183.87	AS3320 Deutsche Telekom AG	`6.77ms` from Frankfurt am Main, DE
14.231.110.87	AS45899 VNPT Corp	`1.63ms` from Hanoi, VN
39.45.107.151	AS17557 Pakistan Telecommunication Company Limited	`1.87ms` from Lahore, PK
78.32.187.215	AS8468 ENTANET International Limited	`4.97ms` from London, GB
79.34.233.151	AS3269 Telecom Italia S.p.A.	`2.42ms` from Milan, IT
109.161.79.23	AS12389 PJSC Rostelecom	`10.86ms` from Moscow, RU
217.109.151.135	AS3215 Orange S.A.	`5.45ms` from Paris, FR
107.3.153.199	AS7922 Comcast Cable Communications, LLC	`5.77ms` from San Jose, US
49.28.115.55	AS4766 Korea Telecom	`7.78ms` from Seoul, KR
1.141.157.103	AS1221 Telstra Limited	`1.58ms` from Sydney, AU
139.47.175.71	AS12663 Vodafone Italia S.p.A.	`3.52ms` from Amsterdam, NL
83.98.143.23	AS8315 Accenture B. V.	`0.46ms` from Amsterdam, NL
5.161.198.23	AS213230 Hetzner Online GmbH	`0.35ms` from Ashburn, US
20.25.60.7	AS8075 Microsoft Corporation	`0.50ms` from Ashburn, US
60.205.40.7	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.23ms` from Beijing, CN
173.93.97.39	AS11426 Charter Communications Inc	`14.44ms` from Charlotte, US
188.181.115.23	AS3292 TDC Holding A/S	`3.07ms` from Copenhagen, DK
72.135.4.151	AS11427 Charter Communications Inc	`16.66ms` from Dallas, US
191.33.66.247	AS18881 TELEFÔNICA BRASIL S.A	`19.58ms` from Fortaleza, BR
217.234.26.135	AS3320 Deutsche Telekom AG	`3.12ms` from Hamburg, DE
141.113.176.7	AS32611 MERCEDES-BENZ USA, LLC	`2.30ms` from New York City, US

Traceroute

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

traceroute -a -n -q1 -f2 -m6 172.56.66.200

traceroute to 172.56.66.200 (172.56.66.200): 6 hops max, 52 byte packets

2 [] 84.17.33.142 30.359 ms

3 [] 138.199.0.107 0.224 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Los Angeles, 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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