172.56.200.0/21

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:        2025-01-09
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 172.56.200.0/21

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 172.56.0.0/16

Range	ASN	Company	Num of IPs
172.32.0.0/11	AS21928	T-Mobile USA, Inc.	2,097,152

Hosted domains

There are 8 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
172.56.200.16	greensdontquit.com	1
172.56.200.250	hcoverlanding.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
222.213.239.85	AS4134 CHINANET-BACKBONE	`3.82ms` from Chengdu, CN
76.235.246.37	AS7018 AT&T Enterprises, LLC	`19.07ms` from Chicago, US
73.161.173.37	AS7922 Comcast Cable Communications, LLC	`10.08ms` from Chicago, US
66.94.139.165	AS17306 JAB Wireless, INC.	`12.91ms` from Dallas, US
105.243.76.5	AS36994 Vodacom	`1.74ms` from Johannesburg, ZA
49.244.148.133	AS23752 Nepal Telecommunications Corporation, Internet Services,	`2.37ms` from Kathmandu, NP
18.175.170.181	AS16509 Amazon.com, Inc.	`0.57ms` from London, GB
81.155.155.133	AS2856 British Telecommunications PLC	`7.38ms` from London, GB
2.219.217.21	AS5607 Sky UK Limited	`5.69ms` from London, GB
94.14.221.5	AS5607 Sky UK Limited	`3.42ms` from London, GB
81.47.147.69	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.14ms` from Madrid, ES
189.201.22.197	AS28469 AT&T COMUNICACIONES DIGITALES S DE RL	`1.45ms` from Monterrey, MX
24.142.90.53	AS11290 Cogeco Connexion inc	`13.49ms` from Montreal, CA
223.109.77.85	AS56046 China Mobile communications corporation	`3.95ms` from Nanjing, CN
91.10.40.133	AS3320 Deutsche Telekom AG	`6.60ms` from Nuernberg, DE
177.38.18.181	AS52966 Raufer Informática Ltda	`2.35ms` from Porto Alegre, BR
112.171.68.133	AS4766 Korea Telecom	`0.91ms` from Seoul, KR
153.210.139.197	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.33ms` from Tokyo, JP
211.154.28.101	AS146817 Hubei Feixun Network Co., Ltd	`6.34ms` from Wuhan, CN
34.210.251.229	AS16509 Amazon.com, Inc.	`0.12ms` from Boardman, US
96.110.41.197	AS7922 Comcast Cable Communications, LLC	`0.50ms` from Chicago, US
217.73.87.117	AS44291 INFOMIR AS	`3.76ms` from Chisinau, MD
209.2.90.133	AS7029 Windstream Communications LLC	`9.01ms` from Dallas, US
223.178.225.213	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.60ms` from Delhi, IN
96.64.20.229	AS7922 Comcast Cable Communications, LLC	`7.26ms` from Flint, US

Traceroute

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

traceroute -a -n -q1 -f7 -m10 172.56.207.202

traceroute to 172.56.207.202 (172.56.207.202): 10 hops max, 52 byte packets

7 [AS6461] 208.184.12.128 82.378 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On November 22nd 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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