What a Sierra Wireless EM7455 LTE modem heard from Southeast Michigan on 16 October 2026 at 15:06 EDT. The modem has no SIM, so it only listened: it never registered or transmitted on any network.
| Carrier | PLMN | Technology |
|---|---|---|
| T-Mobile | 310 260 | LTE |
| AT&T | 310 410 | LTE |
| Verizon | 311 480 | LTE |
| FirstNet (AT&T public safety) | 313 100 | LTE |
From AT+COPS=?. No 3G networks answered.
| Carrier | Band | EARFCN | Bandwidth | PCI | RSRP | RSRQ | SINR |
|---|---|---|---|---|---|---|---|
| T-Mobile | B4 (AWS 1700/2100) | 2100 | 20 MHz | 289 | −93 dBm | −15 dB | 5 dB |
From AT!GSTATUS? and AT!LTEINFO?. No neighbour cells were reported. Cell and tracking-area IDs are left off on purpose, because they pinpoint where the receiver is.
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