172.59.56.0/21

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 172.59.56.0/21

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 172.59.0.0/16

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

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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
52.7.70.229	AS14618 Amazon.com, Inc.	`0.47ms` from Ashburn, US
61.182.251.149	AS4837 CHINA UNICOM China169 Backbone	`7.07ms` from Beijing, CN
3.22.151.37	AS16509 Amazon.com, Inc.	`0.19ms` from Columbus, US
12.50.112.69	AS7018 AT&T Enterprises, LLC	`1.13ms` from Dallas, US
87.166.60.5	AS3320 Deutsche Telekom AG	`5.20ms` from Frankfurt am Main, DE
205.235.7.101	AS23031 TELECU TELECOMUNICACIONES DEL ECUADOR TELECUSA S.A.S.	`1.71ms` from Guayaquil, EC
45.192.212.229	AS138995 Antbox Networks Limited	`0.58ms` from Hong Kong, HK
129.237.36.21	AS2496 University of Kansas	`1.76ms` from Kansas City, US
67.82.18.101	AS6128 Cablevision Systems Corp.	`9.07ms` from New York City, US
84.131.198.85	AS3320 Deutsche Telekom AG	`5.66ms` from Nuernberg, DE
91.168.177.117	AS12322 Free SAS	`6.66ms` from Paris, FR
85.41.46.21	AS3269 Telecom Italia S.p.A.	`5.14ms` from Rome, IT
35.230.63.165	AS396982 Google LLC	`0.16ms` from The Dalles, US
218.23.45.197	AS4134 CHINANET-BACKBONE	`7.23ms` from Wuhan, CN
86.93.65.69	AS1136 KPN B.V.	`2.66ms` from Amsterdam, NL
209.114.11.69	AS20115 Charter Communications LLC	`0.91ms` from Ashburn, US
120.0.63.85	AS4837 CHINA UNICOM China169 Backbone	`9.69ms` from Beijing, CN
93.209.93.213	AS3320 Deutsche Telekom AG	`1.32ms` from Berlin, DE
181.132.137.213	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`15.38ms` from Bogota, CO
120.151.118.69	AS1221 Telstra Limited	`2.32ms` from Brisbane, AU
128.194.56.165	AS3794 Texas A&M University	`6.23ms` from Dallas, US
80.137.220.101	AS3320 Deutsche Telekom AG	`7.02ms` from Frankfurt am Main, DE
45.149.205.69	AS51167 Contabo GmbH	`2.04ms` from Frankfurt am Main, DE
103.250.253.117	AS146835 Nanchang index technology development Co.,LTD	`0.67ms` from Haikou, CN
183.156.70.69	AS4134 CHINANET-BACKBONE	`5.94ms` from Hangzhou, CN

Traceroute

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

traceroute -a -n -q1 -f5 -m10 172.59.62.202

traceroute to 172.59.62.202 (172.59.62.202): 10 hops max, 52 byte packets

5 [AS20940] 23.203.148.20 21.435 ms

6 [AS20940] 23.203.148.33 6.416 ms

7 [AS6461] 208.184.12.174 0.372 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Toronto, CA

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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