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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 2:38:46 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
603-925 Peterborough, NH Freedom Ring Communications, Llc
603-926 Hampton, NH Consolidated Comm Of No. New England-nh
603-927 Sutton, NH Merrimack County Tel. Co.
603-928 Suncook, NH Freedom Ring Communications, Llc
603-929 Hampton, NH Consolidated Comm Of No. New England-nh
603-930 Nashua, NH New Cingular Wireless Pcs, Llc - Dc
603-931 Concord, NH Mcimetro Access Transmission Services Llc - Nh
603-932 Manchester, NH Onvoy, Llc - Nh
603-933 Greenfield, NH Bell Atlantic Mobile, Inc
603-934 Franklin, NH Consolidated Comm Of No. New England-nh
603-935 Manchester, NH Dsci, Llc
603-937 Meredith, NH Bell Atlantic Mobile, Inc
603-938 Bradford, NH Merrimack County Tel. Co.
603-939 East Conway, NH Consolidated Communications Of Maine Company
603-941 Wolfeboro, NH Mcimetro Access Transmission Services Llc - Nh
603-942 Northwood, NH Consolidated Comm Of No. New England-nh
603-943 Nashua, NH Omnipoint Miami E License, Llc
603-944 South Hampton, NH Sprint Spectrum, L.p.
603-945 Manchester, NH Onvoy, Llc - Nh
603-946 New Hampshire
603-947 Plymouth, NH Freedom Ring Communications, Llc
603-948 Rochester, NH Idt America, Corp. - Nh
603-950 New Hampshire
603-951 Milan, NH Level 3 Communications, Llc - Nh
603-952 Salem, NH Level 3 Communications, Llc - Nh
603-953 Dover, NH Choice One Of New Hampshire, Inc.
603-957 Portsmouth, NH New Cingular Wireless Pcs, Llc - Dc
603-958 New Hampshire
603-959 New Hampshire
603-960 Campton, NH Bell Atlantic Mobile, Inc
603-961 Chichester, NH Comcast Ip Phone, Llc
603-964 Rye Beach, NH Consolidated Comm Of No. New England-nh
603-965 Derry, NH Choice One Of New Hampshire, Inc.
603-966 Nashua, NH Sprint Spectrum, L.p.
603-967 Hampton, NH Level 3 Communications, Llc - Nh
603-968 Ashland, NH Consolidated Comm Of No. New England-nh
603-969 Portsmouth, NH Sprint Spectrum, L.p.
603-970 Dover, NH New Cingular Wireless Pcs, Llc - Dc
603-971 Rindge, NH Freedom Ring Communications, Llc
603-973 Rochester, NH Sprint Spectrum, L.p.
603-974 Plaistow, NH Comcast Ip Phone, Llc
603-975 Boscawen, NH Comcast Ip Phone, Llc
603-976 New Hampshire
603-977 Andover, NH Comcast Ip Phone, Llc
603-978 Dover, NH New Cingular Wireless Pcs, Llc - Dc
603-986 North Conway, NH Bell Atlantic Mobile, Inc
603-988 Portsmouth, NH Sprint Spectrum, L.p.
603-989 Pike, NH Consolidated Comm Of No. New England-nh
603-991 Littleton, NH Bell Atlantic Mobile, Inc
603-992 Danbury, NH Level 3 Communications, Llc - Nh
603-994 Rochester, NH Freedom Ring Communications, Llc
603-995 Henniker, NH Sprint Spectrum, L.p.
603-996 Plymouth, NH Sprint Spectrum, L.p.
603-997 Hampton, NH Sprint Spectrum, L.p.
603-998 Laconia, NH Sprint Spectrum, L.p.
603-999 Salem, NH Fractel, Llc

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