From 32f822e749924efabc97e59ee96e0cca2da320d3 Mon Sep 17 00:00:00 2001 From: penmetsaa Date: Fri, 1 Jul 2016 13:00:25 +0530 Subject: [PATCH] Update FAQ.md (#1186) --- FAQ.md | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/FAQ.md b/FAQ.md index 14dec0bf3..8a9b8ab7d 100644 --- a/FAQ.md +++ b/FAQ.md @@ -68,6 +68,14 @@ Some number ranges are explicitly defined as being for fixed-line or mobile phones. We even represent ranges defined as being "Mostly land-line" in this way. +### What is mobile number portability? + +The ability to keep your mobile phone number when changing carriers. To see whether a region supports mobile number portability use [isMobileNumberPortableRegion](https://github.com/googlei18n/libphonenumber/blob/master/java/libphonenumber/src/com/google/i18n/phonenumbers/PhoneNumberUtil.java#L3275). + +### Since it's possible to change the carrier for a phone number, how is the data kept up-to-date? + +Not all regions support mobile number portability. For those that don't, we return the carrier when available. For those that do, we return the original carrier for the supplied number. + ### What about M2M (machine to machine) numbers? libphonenumber does not support M2M numbers at the moment, but might in the