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Users can switch carriers while keeping number and prefix (so prefixes are not tightly coupled to a specific carrier). 7 Claro 8: Instituto Costarricense de Electricidad (Kölbi) Croatia +385: 91: 9: A1 Hrvatska: Due to Mobile number portability the prefix of an existing number does not determine the carrier. Any new number will follow the ...
Worldwide distribution of country calling codes. Regions are coloured by first digit. Officially known as telephone country codes, but also sometimes referred to as country calling codes, country dial-in codes, or historically international subscriber dialing (ISD) codes in the U.K., these dialing sequences are telephone number prefixes for reaching subscribers in foreign countries or areas ...
from outside India: +91, then 731, and then the phone number Before 10 March 2009, as per Department of Telecommunications memorandum dated 9 February 2009. [ 4 ] [ 5 ] there were some exceptions to this general rule for STD areas falling close to each other (within a radius of 200 kilometre), where "0" can be replaced with "95" e.g. to dial ...
Mobile numbers which are not local need to be prefixed by a 0 while dialing, or by +91 (91 is the country code for India). A mobile number written as +91-AAAAA BBBBB is valid throughout India, and in other countries where the + is recognized as a prefix to the country code. Since 2015, calls from mobile phones to any other mobiles do not need ...
+251 91 1xxxxxx: GSM mobile Addis Ababa and area +251 9 xxxxxx +251 91 4xxxxxx: GSM mobile Northern region +251 9 xxxxxx +251 91 5xxxxxx: GSM mobile East region +251 9 xxxxxx +251 91 6xxxxxx: GSM mobile Southern region +251 9 xxxxxx +251 91 7xxxxxx: GSM mobile Western region +251 9 xxxxxx +251 91 8xxxxxx: GSM mobile Northwestern region +251 9 ...
A triangular number or triangle number counts objects arranged in an equilateral triangle. Triangular numbers are a type of figurate number , other examples being square numbers and cube numbers . The n th triangular number is the number of dots in the triangular arrangement with n dots on each side, and is equal to the sum of the n natural ...
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It has as factors 1, 7, 13, 19, 91, 133, 247, and 1729. [2] It is the third Carmichael number, [3] and the first Chernick–Carmichael number. [a] Furthermore, it is the first in the family of absolute Euler pseudoprimes, a subset of Carmichael numbers. [7] 1729 is divisible by 19, the sum of its digits, making it a harshad number in base 10. [8]