Why operators differ#
- Each carrier announces its own address ranges, with their own reputation history.
- Carrier-grade NAT pools are per operator, so the number of subscribers behind an address varies.
- Some services gate features (payments, verification) on the carrier they detect.
Availability#
A pool has the carriers its devices use, which changes with the time of day; a dedicated device has exactly one SIM. Check availability per country before committing a workload to one operator.
How it works at ProxShift#
ProxShift mobile pages list the carriers per country (for example AT&T, T-Mobile, Verizon in the United States); the rotating pool takes -asn- for the carrier and dedicated devices are ordered on a chosen operator.