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Brand new area code allocation post-BigNumber for a new town, chosen to be significantly different from the area codes of the adjacent areas of Gravesend and Dartford. [14] 01988 — Wigtown (WT8) 01989 — Ross-on-Wye, Wye Valley (WV9) 01990 — unused; 0990 was Wentworth (WW0) – numbers were transferred to 0344 [notes 14]
A vertical service code (VSC) is a sequence of digits and the signals star (*) and pound/hash (#) dialed on a telephone keypad or rotary dial to access certain telephone service features. [1] Some vertical service codes require dialing of a telephone number after the code sequence.
Area code 603 is the sole area code for the U.S. state of New Hampshire in the North American Numbering Plan (NANP). It was created as one of the original 86 numbering plan areas in October 1947. It was created as one of the original 86 numbering plan areas in October 1947.
USSD (Unstructured Supplementary Service Data) codes [1] are mobile dial codes that can be used for communicating with the service provider's computers (i.e. for WAP browsing, prepaid callback service, mobile-money services, location-based content services, menu-based information services, and as part of configuring the phone on the network).
Bakelite 232L, Pyramid' Telephone with Manchester Dialling Codes Drawer Card. The first UK public automatic exchange was brought into service at Epsom, Surrey, in May 1912 [12] using the American Strowger 'step-by-step' system. It allowed subscribers to dial the local number themselves (instead of asking the operator to connect them manually).
Office phone systems could be set to block various premium rate prefixes, but it was important to regularly review and update the list. For those that did not, problems accessing some numbers were beginning to develop. The 0930 code was mainly used for premium rate services, but 0930 7xxxxx was used by One2One for mobile telephone services.
Navizon - cloud service with API to locate wireless devices using a global database of WiFi access points and Cell-ID locations; openBmap - a free and open map of wireless communicating objects (e.g. cellular antenna, Wi-Fi access points...) minigps - some information on Cell IDs in china; Mylnikov GEO - an open source API project. It lets get ...
This list contains the mobile country codes and mobile network codes for networks with country codes between 300 and 399, inclusively – a region that covers North America and the Caribbean. Guam and the Northern Mariana Islands are included in this region as parts of the United States.