Guam eSIM guide: networks, coverage and setup

Local networks

• Docomo PacificLargest local operator; covers Guam plus Saipan, Tinian and Rota.
• GTAGuam-only network, LTE on about 95% of the island.
• IT&EOperates networks on Guam, Saipan, Tinian and Rota.

5G4G LTE covers most of the island; 5G is available in main areas.

Must-knows

• If you also visit Saipan, check whether your plan covers the Northern Mariana Islands separately.
• Some US carrier plans include Guam, but many Korea-sold 'USA' eSIMs do not; check for Guam by name.

Buying a local SIM

Prepaid SIMs are sold at operator stores and some shops in Tumon.

Weak-signal areas

Good in Tumon, Hagåtña and around hotels. Southern villages, beaches and hiking areas can be weaker.