Telephone numbers in Singapore digits. Five digits were introduced in 1960s, whereas 5-digit and 6-digit phone numbers were introduced in 1960s as fixed lines grew, but in that year, these changed to seven digits as the introduction of new towns arose (Tampines, Jurong East, Bukit Batok, Yishun and Hougang) and a large number of new numbers were required. Rationalisation was based on geographical locale over the 12 years. In 1995, the digit '9' was added to the front of mobiland pager numbers, making numbers eight digits, and on 1 March 2002, the digit '6' was added to the front of existing fixed line telephone
Latvian ISBN Agency Latvian ISBN Agency Latvian ISBN/ISMN agency () - is an agency responsible for assigning ISBN numbers for the group identifier 9984 to books and ISMN numbers to printed music in Latvia. As of 2008 the agency is part of the National Library of Latvia and is located in Riga. The ISBN group identifier was assigned by The International ISBN Agency to Latvia in 1992 and the agency has been operating since 1993. Since May 2005 the Latvian agency has been assigning ISBNs only for concrete titles. The assignment of ISBN ranges is not practiced any more. Publishers can acquire numbers