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Area Code 603

There are 756 phone number prefixes within area code 603. Additionally, there are more than 4,100 phone numbers in this area code that have received at least one user report. The location of calls from area code 603 is New Hampshire, USA. Most numbers in this area code are in US Eastern time, where the time is currently 12:51:00 AM on June 8, 2025.
 
Choose a phone number from the list below to browse user reports for . You can also use the search box above to search for user reports about any phone number, or to file a report about any phone number.

Prefix City / State Primary Telco
603-814 Seabrook, NH Comcast Ip Phone, Llc
603-815 Durham, NH Teleport Communications America, Llc - Nh
603-816 Nashua, NH Freedom Ring Communications, Llc
603-817 Dover, NH Sprint Spectrum, L.p.
603-818 Derry, NH Sprint Spectrum, L.p.
603-819 Plaistow, NH Level 3 Communications, Llc - Nh
603-820 Merrimack, NH Metropcs, Inc.
603-821 Nashua, NH Conversent Communications Of New Hampshire, Llc
603-822 Rochester, NH Choice One Of New Hampshire, Inc.
603-823 Franconia, NH Consolidated Comm Of No. New England-nh
603-824 Salem, NH Mcimetro Access Transmission Services Llc - Nh
603-825 Manchester, NH Ton80 Communications, Llc
603-826 Charlestown, NH Consolidated Comm Of No. New England-nh
603-827 Harrisville, NH Consolidated Comm Of No. New England-nh
603-828 Portsmouth, NH Bell Atlantic Mobile, Inc
603-829 Sunapee, NH Mcimetro Access Transmission Services Llc - Nh
603-831 Greenfield, NH Bell Atlantic Mobile, Inc
603-832 Laconia, NH Lightship Telecom, Llc - Nh
603-833 Rochester, NH Bell Atlantic Mobile, Inc
603-834 Dover, NH Conversent Communications Of New Hampshire, Llc
603-835 Alstead, NH Consolidated Comm Of No. New England-nh
603-836 Manchester, NH Comcast Ip Phone, Llc
603-837 Whitefield, NH Consolidated Comm Of No. New England-nh
603-838 Lisbon, NH Consolidated Comm Of No. New England-nh
603-839 Farmington, NH Crc Communications Of Maine, Inc. - Nh
603-840 Epsom, NH Comcast Ip Phone, Llc
603-841 Somersworth, NH Comcast Ip Phone, Llc
603-842 Dover, NH Paetec Communications, Inc. - Nh
603-843 Newport, NH Freedom Ring Communications, Llc
603-845 Derry, NH Lightship Telecom, Llc - Nh
603-846 Twin Mountain, NH Consolidated Comm Of No. New England-nh
603-847 Sullivan, NH Consolidated Comm Of No. New England-nh
603-848 Concord, NH United States Cellular - Nh
603-850 Lisbon, NH New Cingular Wireless Pcs, Llc - Dc
603-851 Manchester, NH Bell Atlantic Mobile, Inc
603-852 Keene, NH Omnipoint Miami E License, Llc
603-853 Woodsville, NH Freedom Ring Communications, Llc
603-854 Manchester, NH New Cingular Wireless Pcs, Llc - Dc
603-855 Alton, NH Idt America, Corp. - Nh
603-856 Concord, NH Choice One Of New Hampshire, Inc.
603-857 Suncook, NH Bell Atlantic Mobile, Inc
603-858 Manchester, NH Omnipoint Miami E License, Llc
603-859 New Durham, NH Union Tel. Co.
603-860 Manchester, NH Bell Atlantic Mobile, Inc
603-861 Tamworth, NH Mcimetro Access Transmission Services Llc - Nh
603-862 Durham, NH Paetec Communications, Inc. - Nh
603-863 Newport, NH Consolidated Comm Of No. New England-nh
603-864 Nashua, NH Consolidated Comm Of No. New England-nh
603-865 Newport, NH Consolidated Comm Of No. New England-nh
603-866 Dover, NH Omnipoint Miami E License, Llc
603-867 Manchester, NH New Cingular Wireless Pcs, Llc - Dc
603-868 Durham, NH Consolidated Comm Of No. New England-nh
603-869 Bethlehem, NH Consolidated Comm Of No. New England-nh
603-870 Salem, NH Consolidated Comm Of No. New England-nh
603-871 Sanbornville, NH Level 3 Communications, Llc - Nh
603-872 Gilmanton Iron Works, NH Idt America, Corp. - Nh
603-873 Sunapee, NH Level 3 Communications, Llc - Nh
603-874 Monroe, NH Level 3 Communications, Llc - Nh
603-875 Alton, NH Union Tel. Co.
603-876 Marlborough, NH Consolidated Comm Of No. New England-nh
603-877 New London, NH Comcast Ip Phone, Llc
603-878 Greenville, NH Consolidated Comm Of No. New England-nh
603-879 Nashua, NH Consolidated Comm Of No. New England-nh
603-880 Nashua, NH Telnyx Llc
603-881 Nashua, NH Consolidated Comm Of No. New England-nh
603-882 Nashua, NH Consolidated Comm Of No. New England-nh
603-883 Nashua, NH Consolidated Comm Of No. New England-nh
603-884 Nashua, NH Consolidated Comm Of No. New England-nh
603-885 Nashua, NH Consolidated Comm Of No. New England-nh
603-886 Nashua, NH Consolidated Comm Of No. New England-nh
603-887 Chester, NH Granite State Tel., Inc.
603-888 Nashua, NH Consolidated Comm Of No. New England-nh
603-889 Nashua, NH Consolidated Comm Of No. New England-nh
603-890 Salem, NH Consolidated Comm Of No. New England-nh
603-891 Nashua, NH Consolidated Comm Of No. New England-nh
603-892 Concord, NH Omnipoint Miami E License, Llc
603-893 Salem, NH Consolidated Comm Of No. New England-nh
603-894 Salem, NH Consolidated Comm Of No. New England-nh
603-895 Raymond, NH Consolidated Comm Of No. New England-nh
603-896 Salem, NH Consolidated Comm Of No. New England-nh
603-897 Nashua, NH Consolidated Comm Of No. New England-nh
603-898 Salem, NH Consolidated Comm Of No. New England-nh
603-899 Rindge, NH Consolidated Comm Of No. New England-nh
603-900 Newport, NH Fractel, Llc
603-901 Conway, NH Mcimetro Access Transmission Services Llc - Nh
603-902 Sutton, NH Comcast Ip Phone, Llc
603-903 Keene, NH Crc Communications Of Maine, Inc. - Nh
603-904 Walpole, NH Otel Telekom, Inc. - Nh
603-905 Barrington, NH Otel Telekom, Inc. - Nh
603-906 Barnstead, NH Idt America, Corp. - Nh
603-910 Hampton, NH Conversent Communications Of New Hampshire, Llc
603-911 New Hampshire
603-912 Salem, NH Terra Nova Telecom Inc.
603-913 Merrimack, NH Paetec Communications, Inc. - Nh
603-915 Gorham, NH Bell Atlantic Mobile, Inc
603-918 Hampton, NH Bell Atlantic Mobile, Inc
603-921 Nashua, NH Bell Atlantic Mobile, Inc
603-922 North Stratford, NH Consolidated Comm Of No. New England-nh
603-923 Rochester, NH Level 3 Communications, Llc - Nh
603-924 Peterborough, NH Consolidated Comm Of No. New England-nh

Recent Call Explore
User Reports

925-433-0384
June 6, 2025
spam caller not wanted no answe doesn't answer when called back
256-216-4583
June 6, 2025
unknown caller who did not lreave a message after voicemai opened.
845-261-0542
June 5, 2025
I believe they are scammers seeking information. He even said to me when I questioned him “I will ...
219-209-9799
June 4, 2025
I received a call from this number and they want me to call them back at 855-705-0249
267-703-3744
June 2, 2025
They called 20 times a day leave no message. Very disturbing