172.56.124.0/23

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:      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


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:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 172.56.124.0/23

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 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
111.192.35.87	AS4808 China Unicom Beijing Province Network	`3.32ms` from Beijing, CN
24.63.199.39	AS7922 Comcast Cable Communications, LLC	`7.02ms` from Boston, US
13.247.202.23	AS16509 Amazon.com, Inc.	`0.69ms` from Cape Town, ZA
18.221.115.151	AS16509 Amazon.com, Inc.	`0.16ms` from Columbus, US
192.63.73.7	AS11427 Charter Communications Inc	`8.12ms` from Dallas, US
93.63.90.39	AS12874 Fastweb SpA	`1.66ms` from Milan, IT
195.98.169.23	AS8334 LLC SETEL	`0.38ms` from Moscow, RU
84.190.97.119	AS3320 Deutsche Telekom AG	`3.78ms` from Nuernberg, DE
153.171.243.23	AS4713 NTT DOCOMO BUSINESS,Inc.	`8.82ms` from Osaka, JP
90.45.134.71	AS3215 Orange S.A.	`7.30ms` from Paris, FR
198.12.225.135	AS398101 GoDaddy.com, LLC	`0.95ms` from Phoenix, US
101.4.124.231	AS4538 China Education and Research Network Center	`0.75ms` from Qingdao, CN
65.71.3.71	AS7018 AT&T Enterprises, LLC	`2.29ms` from San Antonio, US
176.230.193.231	AS12400 Partner Communications Ltd.	`1.28ms` from Tel Aviv, IL
188.64.203.55	AS16116 Pelephone Communications Ltd.	`14.66ms` from Tel Aviv, IL
188.79.191.87	AS12479 Orange Espagne SA	`6.39ms` from Zaragoza, ES
89.45.123.103	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`1.64ms` from Athens, GR
113.0.107.135	AS4837 CHINA UNICOM China169 Backbone	`11.68ms` from Changchun, CN
94.8.40.103	AS5607 Sky UK Limited	`4.91ms` from Erith, GB
102.69.175.119	AS37254 Green Flash Trading	`0.16ms` from Johannesburg, ZA
180.14.181.215	AS4713 NTT DOCOMO BUSINESS,Inc.	`14.79ms` from Osaka, JP
187.169.148.71	AS8151 UNINET	`3.82ms` from Santiago de Queretaro, MX
175.126.166.103	AS9318 SK Broadband Co Ltd	`1.87ms` from Seoul, KR
1.175.66.23	AS3462 Data Communication Business Group	`4.28ms` from Taichung, TW
78.62.104.231	AS8764 Telia Lietuva, AB	`13.17ms` from Vilnius, LT

Traceroute

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

traceroute -a -n -q1 -m6 172.56.124.213

traceroute to 172.56.124.213 (172.56.124.213): 6 hops max, 52 byte packets

1 [AS31898] 140.204.222.146 0.185 ms

2 [AS21928] 66.94.0.89 0.61 ms

3 [AS21928] 66.94.0.88 0.775 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On November 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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