Hurricane Maria: Summary of communication status - and lack of

Sean Donelan sean at
Sat Sep 23 21:52:59 UTC 2017

Reportedly most (All?) operational cellular carriers on Puerto Rico have 
activated "universal roaming" service.  All working towers will accept 
roaming connections from any phone from any carrier (or no service 
provider). You may need to turn the phone off & on so it scans for a 
working signal.

Roaming still requires a working cell tower. 48 counties and 
county-equivalents in Puerto Rico have 0% cell sites working. Less than 
25% of cell sites in the remaining counties are working. Capacity is 
extremely limited, so use SMS/Text rather than voice or data.

A side-effect of universal roaming is lack of billing, so expect carriers 
to announce they are waiving charges and overages in Puerto Rico.

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