Local Calling Guide
Area code/prefix search
NPA: 603
[Rate centres in NPA 603]
[Dial plan for NPA 603]
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| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 603-205
| 5 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-205
| 6 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-205
| 7 |
Portsmouth |
NH |
MNCHNHCO16Z |
508J CENTURYLINK COMMUNICATIONS, LLC |
122 |
|
2017-06-14 |
|
| 603-205
| 8 |
Portsmouth |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2013-11-05 |
|
| 603-205
| 9 |
Portsmouth |
NH |
MNCHNHCOCM1 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
122 |
|
|
|
| 603-206
| A |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2025-04-30 |
|
| 603-206
| 0 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2002-11-12 |
|
| 603-206
| 1 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-206
| 2 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-206
| 3 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-206
| 4 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2003-01-01 |
|
| 603-206
| 5 |
Manchester |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
2005-03-25 |
|
| 603-206
| 6 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-206
| 7 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2008-03-22 |
|
| 603-206
| 8 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2003-09-08 |
|
| 603-206
| 9 |
Manchester |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
|
|
| 603-207
| A |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
|
|
| 603-207
| 0 |
Derry |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2022-11-19 |
|
| 603-207
| 1 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2023-01-14 |
|
| 603-207
| 2 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-12-01 |
|
| 603-207
| 3 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-12-01 |
|
| 603-207
| 4 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-12-01 |
|
| 603-207
| 5 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2023-01-14 |
|
| 603-207
| 6 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2023-01-14 |
|
| 603-207
| 7 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-11-13 |
|
| 603-207
| 8 |
Derry |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-11-13 |
|
| 603-207
| 9 |
Derry |
NH |
MNCHNHCO23Z |
073H TELNYX LLC |
122 |
|
2023-02-10 |
|
| 603-208
| A |
Lyme |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-208
| 0 |
Lyme |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2022-01-15 |
|
| 603-208
| 1 |
Lyme |
NH |
MNCHNHAC3MD |
939H COMMIO, LLC |
122 |
|
2022-10-09 |
|
| 603-208
| 2 |
Lyme |
NH |
|
829J PAETEC ITEL, LLC |
122 |
|
2011-04-11 |
|
| 603-208
| 3 |
Lyme |
NH |
MNCHNHCOX9Z |
637E ONVOY, LLC - NH |
122 |
|
2021-04-09 |
|
| 603-208
| 6 |
Lyme |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-208
| 7 |
Lyme |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-208
| 8 |
Lyme |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-208
| 9 |
Lyme |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-209
| A |
Keene |
NH |
MNCHNHCOX4Z |
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-209
| 0 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-209
| 1 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-209
| 2 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-209
| 3 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-209
| 4 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-209
| 5 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-209
| 6 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-209
| 7 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-209
| 8 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-209
| 9 |
Keene |
NH |
|
6290 UNITED STATES CELLULAR - NH |
122 |
|
|
|
| 603-210
| A |
Suncook |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
| 603-210
| 0 |
Suncook |
NH |
PTMONH073MD |
9827 OTEL TELEKOM, INC. - NH |
122 |
|
2009-01-03 |
|
| 603-210
| 1 |
Suncook |
NH |
MNCHNHIE6MD |
318J COMCAST IP PHONE, LLC |
122 |
|
|
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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