closed numbering plan of the NANP. Interchangeable numbering plan area (NPA) codes and central office codes are codes that permit any of the ten numerals...

the middle digit of an area code had to be either 0 or 1, implementing fully interchangeable NPA and central office codes, that had already been anticipated...

three-digit numbering plan area (NPA) codes under the common country code 1, shown in the format 1 (NPA). Within an NPA, all telephone numbers have seven...

decided to introduce interchangeable central office codes, effective 1 October 1989. Previously, the 404 numbering plan served 640 central offices, but the...

Area codes 202 and 771 are telephone area codes in the North American Numbering Plan (NANP) for Washington, D.C. Area code 202 was one of the original...

Newspapers.com. "Information Letter 89/010-047: NANP–Interchangeable Central Office Codes in Arizona 602 NPA" (PDF). NANPA/Bellcore. October 19, 1989. Retrieved...

area codes assigned in 1995 (334 in Alabama, and 360 in Washington state) were the first interchangeable area codes. In 1962, AT&T assigned NPA 610 for...

NANP - Interchangeable Central Office Codes in the Toronto, Ontario, Canada 416 NPA Area code map of Canada CNA exchange list for area code 416 CNA exchange...

NPA codes from central office prefixes, but only when 0 or 1 were used in the second position of the NPA code. Therefore, numbering plan area codes,...

split created Michigan's first new area code since 1961, and permitted interchangeable central office codes. By 1994, demand for telephone numbers increased...

(Alabama), which began service on the same day, were the first two interchangeable NPA codes in the North American Numbering Plan, having a middle digit other...

with area codes, which had only these digits in the middle position. This last restriction was removed by 1995 with interchangeable NPA codes and the phase-out...

introduction of interchangeable NPA codes, nearly all code combinations are useful as NPAs or as NXXes. Traditionally, identical central office codes in adjacent...

of interchangeable NPA codes, which are area codes that did not have a 0 or 1 as the middle digit and could therefore be confused with the central office...

since the implementation of interchangeable area codes in 1995. The prefix NXX of the subscriber number is the central office code, unique in the numbering...

based on legal codes and statutes, with precedents also playing an important role. Japan has a civil law legal system with six legal codes, which were greatly...

"Number Resources - NPA (Area) Codes". NANPA. Archived from the original on 2013-11-04. Retrieved 2013-11-04. "Toll Free Calls and Telecommunications Tariffs"...

first polymer banknote to be issued by Central Bank of Malaysia and was printed by Note Printing Australia (NPA). A total of 500,000 sets were issued....

Out of facility, used interchangeably with out of office and originating from the Microsoft Xenix mail system OOO – Out of office OPEX – Operating expenditure...

manufacture . A letter, number, or alphanumeric code indicates the place of manufacture: Other codes may indicate metal suppliers (like France or The...

10, 2023. Sources using Calabarzon and Southern Tagalog interchangeably: Nepomuceno, Priam (January 18, 2021). "3 NPA fronts in Southern Tagalog dismantled"...

States Postal Service. Accessed July 10, 2012. Area Code Lookup - NPA NXX for Aberdeen, NJ, Area-Codes.com. Accessed October 28, 2013. U.S. Census website...

typically ranged from 10 μPa down to 10 nPa (8×10−8 Torr down to 8×10−11 Torr). The triode and its derivatives (tetrodes and pentodes) are transconductance devices...

CLLI, TelcoData.US. Accessed August 23, 2024. Area Code Lookup - NPA NXX for Evesham, NJ, Area-Codes.com. Accessed October 9, 2013. "FIPS55 Data: New Jersey"...

resulted in the interchangeable and synonymous usage of one and the other. Over half (60.3 percent) of South Asian Canadians live in the Toronto and Vancouver...