| 1 | north american numbering plan | | | | | | | 2 | 1.07% |
| 2 | new combined nanpa system | | | | | | | 2 | 1.07% |
| 3 | to receive nanpa notifications | | | | | | | 1 | 0.53% |
| 4 | the public switched telephone | | | | | | | 1 | 0.53% |
| 5 | for the public switched | | | | | | | 1 | 0.53% |
| 6 | plan for the public | | | | | | | 1 | 0.53% |
| 7 | numbering plan for the | | | | | | | 1 | 0.53% |
| 8 | the numbering plan for | | | | | | | 1 | 0.53% |
| 9 | is the numbering plan | | | | | | | 1 | 0.53% |
| 10 | the nanp is the | | | | | | | 1 | 0.53% |
| 11 | nanp is the numbering | | | | | | | 1 | 0.53% |
| 12 | started for interconnected voip | | | | | | | 1 | 0.53% |
| 13 | for interconnected voip providers | | | | | | | 1 | 0.53% |
| 14 | nanpa system and website | | | | | | | 1 | 0.53% |
| 15 | nanp and its administration | | | | | | | 1 | 0.53% |
| 16 | system and website update | | | | | | | 1 | 0.53% |
| 17 | signup to receive nanpa | | | | | | | 1 | 0.53% |
| 18 | getting started with cic | | | | | | | 1 | 0.53% |
| 19 | getting started for interconnected | | | | | | | 1 | 0.53% |
| 20 | combined nanpa system and | | | | | | | 1 | 0.53% |
| 21 | about the north american | | | | | | | 1 | 0.53% |
| 22 | and some caribbean countries | | | | | | | 1 | 0.53% |
| 23 | 10digit dialing for 988 | | | | | | | 1 | 0.53% |
| 24 | to 10digit dialing for | | | | | | | 1 | 0.53% |
| 25 | transition to 10digit dialing | | | | | | | 1 | 0.53% |
| 26 | nanpa system user registration | | | | | | | 1 | 0.53% |
| 27 | for area code listings | | | | | | | 1 | 0.53% |
| 28 | getting started with co | | | | | | | 1 | 0.53% |
| 29 | territories and some caribbean | | | | | | | 1 | 0.53% |
| 30 | 988 more information nanpa | | | | | | | 1 | 0.53% |
| 31 | its territories and some | | | | | | | 1 | 0.53% |
| 32 | and its territories and | | | | | | | 1 | 0.53% |
| 33 | us and its territories | | | | | | | 1 | 0.53% |
| 34 | the us and its | | | | | | | 1 | 0.53% |
| 35 | started with co code | | | | | | | 1 | 0.53% |
| 36 | with co code requests | | | | | | | 1 | 0.53% |
| 37 | search for area code | | | | | | | 1 | 0.53% |
| 38 | the north american numbering | | | | | | | 1 | 0.53% |
| 39 | provides information about the | | | | | | | 1 | 0.53% |
| 40 | information about the north | | | | | | | 1 | 0.53% |