I’m used to travel SIMs that give data but no real number, so you’re stuck messaging everywhere. In Japan, that got old fast. A hostel tried to call me about check-in, and for once, the call went through. I used Mobal’s Japan SIM because it came with a real Japanese phone number https://www.mobal.com/japan-sim-card/ , mainly for convenience, but the local number ended up saving me time and awkward explanations. Small thing, big relief.