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  2. Mobile number portability - Wikipedia

    en.wikipedia.org/wiki/Mobile_number_portability

    Overview. Mobile number portability is implemented in varying ways across the globe. The international and European standard implements "recipient-led" porting, in which a customer wishing to port a telephone number contacts the new network (recipient), which sends the number portability request (NPR) to the current network operator (donor).

  3. Local number portability - Wikipedia

    en.wikipedia.org/wiki/Local_number_portability

    Local number portability (LNP) for fixed lines, and full mobile number portability (FMNP) for mobile phone lines, refers to the ability of a "customer of record" of an existing fixed-line or mobile telephone number assigned by a local exchange carrier (LEC) to reassign the number to another carrier ("service provider portability"), move it to another location ("geographic portability"), or ...

  4. List of mobile telephone prefixes by country - Wikipedia

    en.wikipedia.org/wiki/List_of_mobile_telephone...

    268 7xx. 10. NANP member. Argentina. +54. 9/15. 10. All carriers: Claro, Movistar, Personal, Tuenti. 15 before the local number but after long distance area code for national calls (0 11 15 xxxx-xxxx) and 9 placed after the international access code excluding the 15 for international calls (+54 9 11 xxxx-xxxx).

  5. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Kenmore 9392 is a five-pull (1L-4N) small-city telephone number for the Kenmore exchange in Fort Wayne, Indiana. MArket 7032 is a six-digit (2L-4N) telephone number. This format was in use from the 1920s through the 1950s, and was phased out c. 1960. BALdwin 6828 is an urban 3L-4N example, used only in the largest cities before conversion to ...

  6. List of mobile virtual network operators in the United States

    en.wikipedia.org/wiki/List_of_mobile_virtual...

    Yes, Uncapped, unthrottled on Verizon. Plans soft capped at 50 GB on T-Mobile [569] Yes, 3G speeds on Unlimited data plan (T-Mobile) after 50 GB [569] [572] Yes, GSM (T-Mobile) sims have low band 5G, while Super LTE (Verizon) have nationwide 5G with coming support for mmWave 5G. [573] Yes, for additional fee [569] [571]

  7. T-Mobile US - Wikipedia

    en.wikipedia.org/wiki/T-Mobile_US

    On March 7, 2014, T-Mobile announced this number will be increasing to 122 countries. [102] If one is connected to WiFi in one of these countries, and their phone supports WiFi calling, all calls and texts to and from the US are free, and work the same as if they were on the cellular network. [103]

  8. Telephone numbers in Portugal - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Portugal

    Telephone numbers in Portugal. Portugal changed to a closed telephone numbering plan on 31 October 1999; previously, the trunk prefix was '0', but this was dropped. [1] For landline subscribers, the area code, prefixed by the digit '2', was incorporated into the subscriber's number. For mobile subscribers, formerly seven (to call another ...

  9. List of TCP and UDP port numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_TCP_and_UDP_port...

    The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...