Data as of Nov 6, 2026
208.54.136.0/23
No anonymizer space · no proxy exits in 30 daysT-Mobile USA, Inc.
Announcement
this exact prefix
RPKI valid
Announced by
Type
Mobile
Risk
10 / 100 · Low
Shared address
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 208.54.128.0/20 since Aug 2021 | AS21928 | Mobile | T-Mobile USA, Inc. | ||
| 208.54.128.0/19 since May 2005 | AS21928 | Mobile | 4 | T-Mobile USA, Inc. |
Network & registry
Origin network
AS21928
US
- Name
- T-Mobile USA, Inc.
- Type
- Internet provider
- Registered
- Jun 12, 2002
- Domain
- t-mobile.com
- Website
- www.t-mobile.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2017
- Current origin since
- Mar 2017 · 9.6 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 208.54.128.0/20 | AS22140 | /24 | ARIN | Another network |
| 208.54.128.0/19 | AS21928 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 208.
54. 0. 0 - 208. 54. 159. 255 - Netname
- TMO2
- Registrant
- T-Mobile USA, Inc.
- Organization
- T-Mobile USA, Inc. (TMOBI)
- Org address
- 12920 SE 38th Street, Bellevue, WA, 98006
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-208-54-0-0-1
- Parent
- NET-208-0-0-0-0
- Created
- Aug 10, 1999
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 10, 1999
- Status
- assigned
Report abuse
Abuse contact
- abuse@
t-mobile. com - Name
- abuse
- Phone
- +1-888-662-4662
- Handle
- ABUSE4857-ARIN