21. Various plans are discussed for expanding the numbering plan to provide relief after exhaustion. 22. The telephone numbering plan for the country is known as the National Numbering Plan. 23. It also met the long-range numbering plans and switching configurations of the telephone industry. 24. A review and public consultation on the future of Ireland's numbering plan was undertaken. 25. Since 1995, over 380 new area codes were added to the North American Numbering Plan . 26. After reunification, East Germany was merged into the existing ( West ) German numbering plan . 27. Area code overlays invariably require ten-digit dialing of telephone numbers in the numbering plan area. 28. The numbering plan area was created in 1947 to cover the entire state of Alabama. 29. In that year, Tanzania adopted a new numbering plan . 30. The North American Numbering Plan later designated " 00 " for long distance operator access.
