172.56.26.0/23

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:        [email protected]
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

Overlapping Ranges

BGP prefixes that contain 172.56.26.0/23

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 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
172.56.26.84	nickk.org	1
172.56.27.249	craigseabrooks.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
31.25.100.151	AS48635 Your Hosting B.V.	`0.54ms` from Amsterdam, NL
13.92.252.215	AS8075 Microsoft Corporation	`0.42ms` from Ashburn, US
102.41.18.231	AS8452 TE-AS	`5.32ms` from Cairo, EG
174.109.229.215	AS11426 Charter Communications Inc	`10.51ms` from Charlotte, US
172.121.222.7	AS3257 GTT Communications Inc.	`0.24ms` from Dallas, US
65.181.65.151	AS4760 HKT Limited	`8.26ms` from Hong Kong, HK
205.151.205.151	AS4470 Citenet Telecom Inc.	`0.76ms` from Montreal, CA
98.246.151.167	AS7922 Comcast Cable Communications, LLC	`5.41ms` from Portland, US
180.228.65.119	AS17858 LG POWERCOMM	`1.67ms` from Seoul, KR
185.155.175.7	AS206120 KOESIO Networks SAS	`0.06ms` from Tours, FR
20.16.253.183	AS8075 Microsoft Corporation	`0.25ms` from Amsterdam, NL
18.119.35.215	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
77.66.65.199	AS47292 Sentia Denmark A/S	`1.10ms` from Copenhagen, DK
18.202.76.231	AS16509 Amazon.com, Inc.	`0.23ms` from Dublin, IE
88.248.116.215	AS9121 Turk Telekomunikasyon Anonim Sirketi	`3.17ms` from Istanbul, TR
67.227.225.103	AS32244 Liquid Web, L.L.C	`0.32ms` from Lansing, US
101.249.41.71	AS4134 CHINANET-BACKBONE	`0.58ms` from Lhasa, CN
38.19.150.55	AS27843 WIN EMPRESAS S.A.C.	`0.30ms` from Lima, PE
20.235.88.39	AS8075 Microsoft Corporation	`0.18ms` from Lohogaon, IN
191.92.1.23	AS27831 Colombia Móvil	`7.82ms` from Medellin, CO
34.139.207.7	AS396982 Google LLC	`0.15ms` from Moncks Corner, US
129.55.205.23	AS63 Massachusetts Institute of Technology	`9.91ms` from New York City, US
50.48.5.39	AS7011 Frontier Communications of America, Inc.	`10.71ms` from New York City, US
109.120.27.71	AS47165 Omskie kabelnye seti Ltd.	`8.34ms` from Novosibirsk, RU
217.233.125.87	AS3320 Deutsche Telekom AG	`6.13ms` from Nuernberg, DE

Traceroute

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

traceroute -a -n -q1 -m6 172.56.26.172

traceroute to 172.56.26.172 (172.56.26.172): 6 hops max, 52 byte packets

1 [AS31898] 140.204.222.230 0.087 ms

2 [AS21928] 66.94.0.89 0.559 ms

3 [AS21928] 66.94.0.88 0.558 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On January 19th 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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