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Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...
Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.
Weakly prime numbers. Primes that having any one of their (base 10) digits changed to any other value will always result in a composite number. 294001, 505447, 584141, 604171, 971767, 1062599, 1282529, 1524181, 2017963, 2474431, 2690201, 3085553, 3326489, 4393139 ( OEIS : A050249 )
Nearly 6% of Americans have cognitive disabilities such as autism and dementia, which can cause difficulty concentrating or making decisions. To create accessibility for people with these ...
A missing Dutch tourist was found dead early Saturday on the eastern Greek island of Samos, local media reported, the latest in a string of recent cases in which tourists in the Greek islands have ...
5. GreatPeopleSearch. GreatPeopleSearch is a user-friendly free reverse phone number lookup site that provides searchers with fast and accurate results. It draws on publicly available national ...
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).
Two basic conventions are in common use for some Arabic numerals: display segment A is optional for digit 6 (/), segment F for 7 (/), and segment D for 9 (/). Although EF could also be used to represent digit 1, this seems to be rarely done if ever. CDEG is occasionally encountered on older calculators to represent 0.