Telephone number portability can refer to: Mobile number portability - telephone number portability for mobile phone users. Local number portability - telephone…
Telephone number portability can refer to:
Mobile number portability - telephone number portability for mobile phone users. Local number portability - telephone number portability for landline users. Toll-free number portability - telephone number portability for freephone subscribers.
Gebaseerd op: Wikipedia — Telephone number portability · auteursgeschiedenis.
Tekst: CC BY-SA 4.0.
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