166.181.81.131
An address in Chicago, Illinois, United States, announced by T-Mobile USA, Inc. (AS6614). It's a residential proxy exit of anyIP, a mobile proxy exit of Floppydata, and mobile carrier space of T-Mobile.
Summary
Geolocation
Where the address is, and what that place uses.
- City
- Chicago
- Region
- Illinois
- Postal code
- 60608
- Country
- United States
- Continent
- North America
- Coordinates
- 41.8500, -87.6500
- Timezone
- America/Chicago
Ownership
Who holds the address: the AS announcing it, the registry record, the abuse contact and its name in DNS.
- Company
- T-Mobile USA, Inc.
- Domain
- uscellular.com
- Type
- ISP
- Registered in
- United States
- AS number
- AS6614
- Name
- T-Mobile USA, Inc.
- Prefix
- 166.181.81.0/24
- RPKI
- Not found
- Type
- ISP
- Domain
- uscellular.com
- Registered in
- United States
- Name
- T-Mobile USA, Inc.
- Network name
- USL-63
- Organization
- TMOBI
- Status
- allocation
- Registry
- ARIN
- Domain
- t-mobile.com
- Abuse
- abuse@t-mobile.com
- Name
- abuse
- abuse@t-mobile.com
- Phone
- +1-888-662-4662
- Address
- 12920 SE 38th Street, Bellevue, WA, 98006
- Network
- 166.181.0.0-166.182.255.255
Anonymity
Whether the address hides someone else: a VPN, Tor, a relay, a proxy pool, or a hosting range.
- Provider
- anyIP
- First seen
- 2026-08-03
- Last seen
- 2026-08-03
- Days seen
- 1% of 90
- Provider
- Floppydata
- First seen
- 2026-08-01
- Last seen
- 2026-08-01
- Days seen
- 1% of 90
Network
What kind of network it is on: a mobile carrier, a satellite operator, an anycast service, a CDN edge.
- Carrier
- T-Mobile
- MCC
- 310
- MNC
- 260
- Country
- United States
- Confidence
- High
Services
What our own internet-wide measurement found listening on it.
Test the real build first.
An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.