RAvirani Posted December 24, 2018 Share Posted December 24, 2018 Hi guys, I think Verizon is now offering domestic HSPA roaming on T-Mobile on devices lacking CDMA. While looking on Verizon’s international coverage map (https://www.verizonwireless.com/wcms/overlays/international-travel-coverage-map.html), I noticed 3G coverage in Curlew, WA which only shows up when “World Device (with GSM)” is selected. The coverage is not there on the “Non World Device (CDMA Only)” setting. Upon poking around the source code, I found that map loads several coverage layers, including one called “directumtsamericas”. Upon cutting out all of the layers barring this one, I found that the map exactly matches T-Mobile’s HSPA coverage map. It is interesting to note that UMTS-only (non-HSPA) areas on T-Mobile’s map do not show up on Verizon’s map I know Verizon has offered UMTS roaming for CDMA-less devices on AT&T in the past. Maybe they are now replacing this with T-Mobile roaming? EDIT: Premier sponsors can now view this coverage on the Ultimate Coverage Map. 5 Quote Link to comment Share on other sites More sharing options...
iansltx Posted February 7, 2021 Share Posted February 7, 2021 Necroposting a bit, but "UMTS-only"? Did you mean LTE-only? https://www.t-mobile.com/news/press/t-mobile-usa-begins-commercial-3g-network-rollout says the network started with HSDPA, so I'm guessing you meant "HSPA areas show up, LTE-only areas don't". Quote Link to comment Share on other sites More sharing options...
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