Hi there, Matt Jackson from Twilio here. I’m the Product Manager for Super SIM. You’re right, we currently don’t have support for Verizon but we hope to be able to add it in the future. We understand that different developers have different connectivity preferences, so we designed our system to be flexible to adding new partners to the platform. As we continue to add networks, the networks of the future should become available to Super SIMs bought today.

With Super SIM you can also have access to multiple networks at once. For example, if you’re connected to T-Mobile and move to an area where there isn’t coverage, your device can automatically switch over to AT&T. This gives you redundant connectivity too in case any one network or tower goes down.

Matt - off topic, but since I have someone from Twilio here ...

Please, please, for the love of god, please add an "email" verb to the twiml language.

You can make it super restrictive if you need to - like you can only email addresses that you can prove you own ... or something.

All I want is to be able to cc: an email with certain SMS alerts and it takes a sendgrid account and write some functions and validate email @ sendgrid with real names and addresses and on and on and on ... just to send an alert to an email address.

Hi there! That's a bit out of my wheelhouse but I shared your message with some Twilio Sendgrid email folks to take a look.

Vouched for Matt’s reply to overcome HN spam filter.

Matt, I’m not sure what the spam filter is latching in to, but you may want to try varying your opening line a little bit for each response.

Are there any geo areas where ATT+TMO/Sprint (combined due to merger) isn't at parity with VZ?

I live in a mountainous area, and there is a very large difference. So much so that VZ is basically my only option.

I think what happens is that tower leases in some protected areas can be hard to negotiate, so the cost/benefit ratio gets out of whack for new towers (amongst other issues with power, construction, and RF propagation in remote, mountain areas). Maybe someone with more knowledge can chime in.

Towers are typically owned by a REIT (real estate investment trust) or other entity that develops the tower and telco/equipment shelter and then leases out space on the tower to mobile providers (cost is higher to the mobile provider the higher you want to be on the tower).

In some locations, there just isn't any land to site the tower due to regs (national parks comes to mind, nothing except my Iridium hotspot works in parts of the Smokey Mountains), so there are no providers or a single provider who was able to swing a special case on an existing tower (water tower or similar).

Yes, many. Verizon is still the only option for reception in many areas—I live in Los Altos Hills, and the only provider with reception for much of the town is Verizon.