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 291 domain names hosted across 59 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	bigeventbranding.com	112
100.200.30.41	df300.com	87
100.150.100.7	optimizedlogs.xyz	16
100.172.94.1	hotelaveinn.com	10
100.247.208.97	multiservicioslimagt.com	3
100.200.100.200	kazanmakistermisin.net	3
100.204.28.97	napabouncebash.com	3
100.204.208.97	oldhamcountyday.com	3
100.200.30.40	wadsworthtravel.com	3
100.173.196.1	fs-yasha.com	2
100.240.208.97	mg-insulation.com	2
100.244.208.97	xxplosivecandy.com	2
100.145.50.162	rooptex.com	2
100.239.218.61	jonhog.com	1
100.200.0.0	jacegu.work	1
100.142.93.163	jiayuecloud.top	1
100.139.166.125	jaopeitas.com	1
100.136.102.34	mstv-plex.xyz	1
100.153.0.70	psctexas.cloud	1
100.231.100.171	landsdoctor.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
20.23.111.153	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
35.205.206.41	AS396982 Google LLC	`0.14ms` from Brussels, BE
41.143.49.169	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`8.46ms` from Casablanca, MA
20.228.14.105	AS8075 Microsoft Corporation	`0.40ms` from Des Moines, US
61.186.40.105	AS4134 CHINANET-BACKBONE	`4.18ms` from Haikou, CN
82.207.244.89	AS8881 1&1 Versatel GmbH	`1.96ms` from Hamburg, DE
14.171.166.41	AS45899 VNPT Corp	`6.16ms` from Hanoi, VN
197.68.164.233	AS16637 MTN SA	`14.29ms` from Johannesburg, ZA
202.51.0.249	AS24504 Computer Land Communications Global AS	`0.77ms` from Kathmandu, NP
213.120.73.201	AS2856 British Telecommunications PLC	`10.39ms` from London, GB
83.105.78.41	AS5378 Vodafone Limited	`3.42ms` from London, GB
15.185.69.153	AS16509 Amazon.com, Inc.	`0.09ms` from Manama, BH
101.165.226.105	AS1221 Telstra Limited	`5.79ms` from Melbourne, AU
201.145.144.217	AS8151 UNINET	`1.67ms` from Mexico City, MX
59.97.146.105	AS9829 National Internet Backbone	`6.13ms` from Mumbai, IN
184.152.121.25	AS12271 Charter Communications Inc	`1.77ms` from New York City, US
133.1.136.137	AS4730 Osaka University	`2.00ms` from Osaka, JP
37.16.96.73	AS51691 F-Solutions Oy	`0.65ms` from Oulu, FI
191.243.143.105	AS263062 CDZNET DATACENTER LTDA	`0.07ms` from Sao Jose do Rio Preto, BR
122.35.62.233	AS17858 LG POWERCOMM	`1.64ms` from Seoul, KR
47.128.243.249	AS16509 Amazon.com, Inc.	`0.11ms` from Singapore, SG
87.62.153.25	AS3292 TDC Holding A/S	`2.18ms` from Skanderborg, DK
213.91.154.9	AS8866 Vivacom Bulgaria EAD	`0.56ms` from Sofia, BG
36.154.69.233	AS56046 China Mobile communications corporation	`3.92ms` from Suzhou, CN
1.157.54.25	AS1221 Telstra Limited	`12.34ms` from Sydney, AU

Traceroute

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

traceroute -a -n -q1 -f5 -m9 100.194.46.152

traceroute to 100.194.46.152 (100.194.46.152): 9 hops max, 52 byte packets

5 [AS174] 154.54.42.101 7.477 ms

6 [AS174] 154.54.27.118 1.469 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On November 14th 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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