T-Mobile's network — and its aggressive fixed-wireless and business data plans — is a first-choice carrier for many Cradlepoint deployments. The 170753-000 is the physical key: a T-Mobile retail triple punch SIM, referenced to SKU ZZZ260R060, sized for the 2FF and 4FF form factors across Cradlepoint's router and adapter portfolio. The punch-out design means one card serves both common slots. Full-size 2FF slots dominate Cradlepoint's router lineup, while 4FF (nano) appears in newer and more compact hardware; the same SKU covers either, so kitting and spares stay simple. No SIM cutters, no wrong-size surprises at a remote site. Operationally, treat the SIM as part of the staging checklist: provision the plan against the SIM's identifiers, seat and punch the card, configure the APN, and verify registration before the router ships. Deep distributor stock on this part makes it easy to attach to every router order — including bulk orders for multi-hundred-site rollouts — so activation is never gated on carrier retail channels. As with any carrier SIM, service comes from the T-Mobile plan, not the card; confirm the plan class matches your device (router, fixed wireless, IoT) to avoid activation rejections. Cradlepoint MPN 170753-000, UPC 804879607144, approximately 0.02 lb. The AT&T counterpart for the same role is Cradlepoint part 170752-001.