172.56.234.0/23

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 172.56.234.0/23

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
212.181.231.151	AS3301 Telia Company AB	`0.93ms` from Goeteborg, SE
125.89.64.7	AS4134 CHINANET-BACKBONE	`3.36ms` from Guangzhou, CN
51.198.183.103	AS5607 Sky UK Limited	`3.63ms` from London, GB
107.140.93.135	AS7018 AT&T Enterprises, LLC	`4.39ms` from Los Angeles, US
71.147.58.119	AS7018 AT&T Enterprises, LLC	`2.09ms` from Los Angeles, US
2.155.228.215	AS12430 VODAFONE ESPANA S.A.U.	`12.79ms` from Madrid, ES
83.51.116.135	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.47ms` from Madrid, ES
44.206.246.199	AS14618 Amazon.com, Inc.	`0.38ms` from Reston, US
175.240.154.231	AS4766 Korea Telecom	`1.25ms` from Seoul, KR
139.99.78.39	AS16276 OVH SAS	`0.40ms` from Singapore, SG
111.168.39.87	AS2518 BIGLOBE Inc.	`7.64ms` from Tokyo, JP
174.2.95.119	AS6327 Shaw Communications	`11.66ms` from Winnipeg, CA
101.200.176.23	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.41ms` from Beijing, CN
183.220.127.135	AS9808 China Mobile Communications Group Co., Ltd.	`3.62ms` from Chengdu, CN
98.144.104.119	AS10796 Charter Communications Inc	`5.01ms` from Chicago, US
74.249.190.7	AS8075 Microsoft Corporation	`0.69ms` from Des Moines, US
176.34.245.135	AS16509 Amazon.com, Inc.	`0.18ms` from Dublin, IE
210.120.44.151	AS3786 LG DACOM Corporation	`1.45ms` from Incheon, KR
92.137.190.151	AS3215 Orange S.A.	`6.08ms` from Lyon, FR
79.146.167.23	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.44ms` from Madrid, ES
116.255.9.55	AS38195 Superloop	`0.71ms` from Melbourne, AU
151.9.240.215	AS1267 WIND TRE S.P.A.	`7.15ms` from Milan, IT
80.181.241.103	AS3269 Telecom Italia S.p.A.	`5.02ms` from Rome, IT
64.180.89.7	AS852 TELUS Communications Inc.	`3.69ms` from Seattle, US
116.88.222.39	AS55430 Starhub Ltd	`2.55ms` from Singapore, SG

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 172.56.234.149

traceroute to 172.56.234.149 (172.56.234.149): 7 hops max, 52 byte packets

4 [AS21928] 100.199.0.57 0.077 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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