Real T-Mobile SIM Lines, Field by Field

Buyers of Real US Proxies verify every line in a public IP checker, so this page describes a T-Mobile SIM the way a checker does: one field at a time. T-Mobile is the carrier whose addresses most often name the exact city the SIM sits in and whose mid-band 5G layer is the widest. A T-Mobile line from us is one real T-Mobile SIM inside a phone, modem or router we own in a US city, rented to one customer, with unlimited data and rotation on demand. Below is what each field will say, and why, followed by the practical facts: cities, devices, tiers and prices.

ISP and organisation: T-Mobile USA

The ISP field reads T-Mobile USA, drawn from the public registry record of the address block. T-Mobile's home internet and business fibre products are registered separately, so a checker can tell a handset from a fixed connection, and a SIM in our rack lands firmly on the handset side. If this field ever named anything other than T-Mobile USA on one of our T-Mobile lines, the line would not be what we sold, and you should tell us.

ASN: AS21928

The autonomous system number for T-Mobile's mobile subscriber space is AS21928, so that is the number to look for in the checker. Routing announcements are public and recorded by independent observers, which makes this the hardest field on the page to counterfeit and the one we suggest buyers check first.

Connection type: cellular

Cellular, mobile or wireless, depending on the checker's vocabulary. This is the classification websites consult when deciding how to treat a visitor, and it is why a real SIM behaves like a phone in practice and not only in a description. A T-Mobile SIM in our rack reads cellular because it is attached to T-Mobile's radio network exactly as a subscriber's phone is.

Country, state and city

United States, always. The state matches the SIM's city on every line. The city field is where T-Mobile stands apart: its gateways map tightly to metros, so a Houston SIM reads Houston, a Chicago SIM reads Chicago and a Miami SIM reads Miami more consistently than on the other carriers, where a regional hub can appear instead. Databases still update on their own schedules and can disagree with one another, so treat the city as the strongest hint available rather than a guarantee.

What rotation does to the fields

A rotation re-attaches the SIM to T-Mobile's network and the gateway hands it another public address from its regional pool. ISP, ASN, type, country and state are unchanged; the address and sometimes the city reading change. T-Mobile pools are wide, so repeats take many rotations to appear in a busy city. Left alone, an address usually holds for hours. Rotation is unlimited by link, API, dashboard, timer or hand.

Cities, devices and tiers

T-Mobile SIMs are stocked in all eight of our cities as the shelf allows, in Android phones, 4G and 5G USB modems and routers that you pick at checkout. T-Mobile has the widest mid-band 5G of the three carriers: 5G lines run up to 50 Mbps download and 4G lines up to 25 Mbps, with the usual variation of any radio link, and eligible 5G lines take the 5G+ add-on for a 70 Mbps+ average download.

Who chooses T-Mobile, and what it costs

Buyers who need the city field to read the city itself, buyers whose accounts carry a T-Mobile phone number, and buyers who want the widest 5G or a real handset. A T-Mobile SIM costs the same as any carrier here: 4G at $5 a day, $28 a week or $67 a month; 5G at $6, $33 or $76; a two-hour check at $2 on 4G or $3 on 5G. USDT TRC-20 is the first payment option and the amount equals the dollar price.

T-Mobile proxy questions