100.128.0.0/9

AS21928 · T-Mobile USA, Inc.

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Summary

Country	United States
Domain	t-mobile.com
ASN	AS21928
Registry	ARIN
ID	CORE2

WHOIS Details

NetHandle:      NET-100-128-0-0-1
OrgID:          TMOBI
Parent:         NET-100-0-0-0-0
NetName:        CORE2
NetRange:       100.128.0.0 - 100.255.255.255
NetType:        allocation
RegDate:        2012-02-27
Updated:        2012-05-24
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

Nearby Ranges

BGP prefixes that overlap with 100.0.0.0/8

Range	ASN	Company	Num of IPs
100.48.0.0/12	AS14618	Amazon Data Services Northern Virginia	1,048,576
100.24.0.0/13	AS14618	Amazon Data Services Northern Virginia	524,288
100.20.0.0/14	AS16509	Amazon.com, Inc.	262,144
100.44.0.0/14	AS14654	AT&T Enterprises, LLC	262,144
100.43.192.0/18	AS14265	TPx Communications	16,384
100.43.64.0/19	AS208398	Edge Technology Plus d.o.o. Beograd	8,192
100.43.96.0/19	AS22995	Xplore Inc.	8,192
100.43.32.0/19	AS53809	Texas Tech University Health Sciences Center at El Paso	8,192
100.42.240.0/20	AS11260	EastLink	4,096
100.42.160.0/20	AS13692	Douglas FastNet	4,096
100.42.64.0/20	AS16509	Amazon.com, Inc.	4,096
100.42.32.0/20	AS17004	Kentucky Wimax	4,096
100.42.208.0/20	AS18450	WebNX, Inc.	4,096
100.42.144.0/20	AS20030	Artelco	4,096
100.42.128.0/20	AS26732	Wagner College	4,096
100.42.0.0/20	AS36426	IsoTropic Networks, Inc.	4,096
100.42.16.0/20	AS46841	Fork Networking, LLC	4,096
100.42.224.0/20	AS54288	SolidTools Technology, Inc.	4,096
100.42.184.0/21	AS51167	Contabo GmbH	2,048
100.42.176.0/21	AS51167	Contabo GmbH	2,048
100.43.22.0/23	AS174	APOG-HOWARD	512
100.43.20.0/23	AS395597	Apogee-Furman	512
100.43.24.0/23	AS40082	APOG-CofC	512
100.43.28.0/23	AS395597	APOG-GSU	512
100.43.27.0/24	AS395597	APOG-ATL-COLO	256
100.43.30.0/24	AS395597	APOG-GSU	256
100.43.3.0/24	AS395597	APOG-MOOREHOUSEC-24	256
100.43.5.0/24	AS395597	BOLD-CACC	256
100.43.13.0/24	AS400614	University of the Ozarks	256
100.43.2.0/24	AS40082	APOG-CofC	256
100.42.89.0/24	AS62643	The Community Agency	256
100.43.0.0/24	AS22773	BOLD-UniversityWestFlorida	256
100.42.26.0/24	AS17676	SoftBank Corp	256
100.42.17.0/24	AS26241	Castle VPN	256
100.42.193.0/24	AS32524	M9 Systems	256
100.42.27.0/24	AS54098	Fork Networking	256
100.43.14.0/24	AS3356	Lock Haven University	256
100.42.92.0/24	AS62643	The Community Agency	256
100.43.31.0/24	AS395461	Apogee Dev Lab	256
100.43.12.0/24	AS395597	Apogee - Morehouse College	256
100.43.26.0/24	AS395597	APOG-GSU	256

Hosted domains

There are 277 domain names hosted across 55 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
100.200.30.42	zisticstools.com	109
100.200.30.41	beyondfunderdome.com	82
100.150.100.7	fastrestore.xyz	16
100.172.94.1	studiodentisticogodeassipozzi.it	10
100.204.28.97	napabouncebash.com	3
100.204.208.97	oldhamcountyday.com	3
100.247.208.97	controldemarcacion.com	3
100.200.30.40	magento-enterprise-servers.com	3
100.244.208.97	xxplosivecandy.com	2
100.240.208.97	mg-insulation.com	2
100.200.100.200	prestan.us	2
100.173.196.1	fs-yasha.com	2
100.181.61.121	flounderfinance.com	1
100.191.237.213	metaverifiedsupport.net	1
100.136.200.118	metaverifiedsupport.net	1
100.175.161.109	metaverifiedsupport.net	1
100.179.242.225	sadlerlawpa.com	1
100.200.254.254	posizionamentomotorediricerca.com	1
100.231.100.171	landsdoctor.com	1
100.200.3.4	robdarnell.net	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
75.102.56.9	AS23352 DEFT.COM	`0.26ms` from Amsterdam, NL
59.144.106.153	AS9498 BHARTI Airtel Ltd.	`0.60ms` from Bengaluru, IN
181.55.154.217	AS10620 Telmex Colombia S.A.	`7.00ms` from Bogota, CO
91.120.114.57	AS5483 Magyar Telekom Plc.	`5.42ms` from Budapest, HU
148.70.57.137	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.81ms` from Chengdu, CN
201.29.114.73	AS7738 V tal	`19.18ms` from Fortaleza, BR
120.36.136.185	AS4134 CHINANET-BACKBONE	`5.54ms` from Fuzhou, CN
45.197.58.57	AS9294 GNET INC.	`0.77ms` from Hong Kong, HK
49.83.223.57	AS4134 CHINANET-BACKBONE	`5.89ms` from Huai'an, CN
95.0.57.105	AS9121 Turk Telekomunikasyon Anonim Sirketi	`0.83ms` from Istanbul, TR
204.100.134.249	AS18558 Riverside County Office of Education	`1.94ms` from Los Angeles, US
163.150.14.25	AS22315 San Bernardino County Superintendent of Schools	`1.92ms` from Los Angeles, US
196.235.253.153	AS37492 Orange Tunisie	`19.70ms` from Marseille, FR
68.173.202.89	AS12271 Charter Communications Inc	`0.73ms` from New York City, US
183.130.0.9	AS4134 CHINANET-BACKBONE	`10.38ms` from Ningbo, CN
222.9.228.73	AS18126 Chubu Telecommunications Company, Inc.	`6.52ms` from Osaka, JP
217.109.3.153	AS3215 Orange S.A.	`8.86ms` from Paris, FR
44.210.234.249	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
157.131.86.73	AS46375 Sonic Telecom LLC	`2.25ms` from San Jose, US
206.169.227.25	AS3549 Level 3 Parent, LLC	`0.38ms` from Seattle, US
76.146.52.233	AS7922 Comcast Cable Communications, LLC	`8.01ms` from Seattle, US
27.126.30.169	AS38133 CMB	`3.86ms` from Seoul, KR
88.118.163.233	AS8764 Telia Lietuva, AB	`3.33ms` from Siauliai, LT
4.42.34.137	AS3356 Level 3 Parent, LLC	`0.65ms` from Toronto, CA
95.155.25.217	AS8585 Crnogorski Telekom a.d.Podgorica	`12.46ms` from Zagreb, HR

Traceroute

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

traceroute -a -n -q1 -f3 -m6 100.255.248.216

traceroute to 100.255.248.216 (100.255.248.216): 6 hops max, 52 byte packets

3 [AS132145] 180.233.129.202 205.856 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Darwin, AU

On December 6th 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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