Data as of Nov 4, 2026
166.181.196.0/24
No anonymizer space · no proxy exits in 30 daysT-Mobile USA, Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 166.181.0.0/16 since Nov 2006 | AS6614 | Mobile | T-Mobile USA, Inc. |
Network & registry
Announced by
Covering announcement 166.181.192.0/21
- Prefix
- 166.181.192.0/21
- Announced by
- AS6614 T-Mobile USA, Inc.
- Type
- Mobile
- RPKI
- No RPKI
- Netname
- USL-63
- Registrant
- T-Mobile USA, Inc.
- RIR
- ARIN
Origin network
AS6614
US
- Name
- T-Mobile USA, Inc.
- Type
- Internet provider
- Registered
- Jun 5, 1995
- Domain
- t-mobile.com
- Website
- www.uscellular.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
166.181.192.0/21
Routing history
- Pattern
- Stable
- First seen
- Oct 2021
- Current origin since
- Oct 2021 · 5.0 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 166.181.0.0 - 166.182.255.255
- Netname
- USL-63
- 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-166-181-0-0-1
- Parent
- NET-166-0-0-0-0
- Created
- Apr 7, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 7, 2025
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- abuse
- Phone
- +1-888-662-4662
- Handle
- ABUSE4857-ARIN