01633

Last updated

01633
United Kingdom adm location map.svg
Red pog.svg
01633
United Kingdom area code for Newport
National calling01633
International calling+44 1633
ConservationYes [1]
Active since 16 April 1995
Previous code(s)0633
Number format01633 xxxxxx
Coverage
Newport UK location map.svg
Red pog.svg
Maesglas
Red pog.svg
Savoy
Red pog.svg
Chartist
Red pog.svg
Maindee
Red pog.svg
Rhiwderin
Red pog.svg
Caerleon
Red pog.svg
Castleton
Red pog.svg
Cwmbran
Red pog.svg
Machen
Red pog.svg
Llanwern
Red pog.svg
Magor
Red pog.svg
Penhow
Red pog.svg
Risca
Red pog.svg
Tredunnock
Area served Newport
Cwmbran
Machen
Magor
List of United Kingdom codes

The 01633 telephone area code covers the city of Newport and surrounding areas in the United Kingdom. Before PhONEday the area code was 0633, which was originally dialled as "0NE3" where the "NE" were formed from the first two letters of NEwport on the telephone dial.[ citation needed ] In common with all other British area codes the initial '0' is a trunk prefix that is dropped when dialling from abroad.

Contents

Coverage

The 14 exchanges listed in the table below form the 01633 code area as of 2012:

ExchangePremises
OLO codeNameResidentialBusiness
SWNE/EX [2] Newport Savoy20,9671,620
SWNE/CH [3] Newport Chartist8,852190
SWMDE [4] Maindee12,003434
SWRWI [5] Rhiwderin6,660110
SWCAA [6] Caerleon4,161161
SWMES [7] Maesglas3,66690
SWUWN [8] Llanwern2,15362
SWCTE [9] Castleton1,56454
SWPHX [10] Penhow78647
SWMAD [11] Machen1,22728
SWRDX [12] Risca5,009234
SWCRS [13] Cwmbran20,268905
SWTUC [14] Tredunnock35525
SWMGR [15] Magor2,47799

History

The Group switching centre (GSC) for the Newport charge group was the Savoy exchange. This exchange alongside the Chartist, Maindee and Maesglas exchanges formed the Newport linked numbering scheme whereby local numbers could be dialled directly and with the STD code 0633. The surrounding dependent exchanges could be accessed via local codes and longer STD codes based on 0633.

Dependent exchanges

Smaller exchanges around the GSC were parented onto it. From them the digit 9 was dialled to access the GSC. The codes from the GSC to the dependent exchanges are listed in the table below:

ExchangeLocal codeOriginal STD code
Cwmbran 3063 33
Llanwern 41063 341
Caerleon 42063 342
Rhiwderin 43063 343
Risca 44063 344
Penhow 45063 345
Machen 46063 346
Magor 47063 347
Castleton 48063 348
Tredunnock 49063 349

To dial from one dependent exchange to another one first dialled 9 to access the GSC then dialled the local code to the destination exchange. Thus a caller from Machen to Magor would dial 947 before the subscriber's number and a caller from Risca to Cwmbran would dial 93. A caller to a Newport number in the linked numbering scheme would simply dial 9.

Changes

Over time the local codes were abolished and the dependent exchanges became part of the linked numbering scheme. This meant the 3, 4 and 5-digit numbers became 6-digit numbers by means of a prefix that was unique in the 0633 code area.[ citation needed ]

The remaining 5-digit numbers in the Newport area (50000–59999 and 62000–69999) were prefixed with 2 in 1990. Since then all numbers have been 6-digit and the previous prefixes have been reused by other communications providers.

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References

  1. "The National Telephone Numbering Plan" (PDF). Ofcom. 31 May 2012. Archived from the original (PDF) on 10 July 2012.
  2. "Newport Savoy Exchange". Samknows. Retrieved 12 October 2012.
  3. "Newport Chartist Exchange". Samknows. Retrieved 12 October 2012.
  4. "Maindee Exchange". Samknows. Retrieved 12 October 2012.
  5. "Rhiwderin Exchange". Samknows. Retrieved 12 October 2012.
  6. "Caerleon Exchange". Samknows. Retrieved 12 October 2012.
  7. "Maesglas Exchange". Samknows. Retrieved 12 October 2012.
  8. "Llanwern Exchange". Samknows. Retrieved 12 October 2012.
  9. "Castleton Exchange". Samknows. Retrieved 12 October 2012.
  10. "Penhow Exchange". Samknows. Retrieved 12 October 2012.
  11. "Machen Exchange". Samknows. Retrieved 12 October 2012.
  12. "Risca Exchange". Samknows. Retrieved 12 October 2012.
  13. "Cwmbran Exchange". Samknows. Retrieved 12 October 2012.
  14. "Tredunnock Exchange". Samknows. Retrieved 12 October 2012.
  15. "Magor Exchange". Samknows. Retrieved 12 October 2012.

51°35′37″N2°59′55″W / 51.5937°N 2.9987°W / 51.5937; -2.9987