South Carolina, United States
Eastern Time
4:33 PM
Area Code
803
State / Province
South Carolina
Country
United States
Time Zone
Eastern Time
Area code 803 covers 83 cities and communities across South Carolina, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+18035550100">+18035550100</a><a href="tel:+18035550199">+18035550199</a>Look up which exchange in South Carolina a specific 803 number is homed to, and whether its block is wireline or wireless. See what a reverse lookup can establish before relying on the answer.
784 active prefixes in this area code, assigned as 5,925 thousands-blocks — pooling splits one prefix across several carriers, so each block is listed separately with the rate centre it is homed to, its carrier of record, and the switch that serves it.
Showing blocks 1–100 of 5,925
| NPA-NXX | Block | Rate centre | Type | Carrier (OCN) | Switch | LATA | LIR | Dates |
|---|---|---|---|---|---|---|---|---|
| 803-200 | 0 | Columbia | Landline or VoIP | PBT COMMUNICATIONS, INC. - SC (3453) | PELION | 434 | — | — |
| 803-200 | 1 | Columbia | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - SC (077F) | CLMASCSNX2Z | 434 | — | — |
| 803-200 | 2 | Columbia | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - SC (077F) | CLMASCSNX2Z | 434 | — | — |
| 803-200 | 3 | Columbia | Wireless | SUNCOM DBA T-MOBILE USA (8645) | CLMASCSN13Z | 434 | — | — |
| 803-200 | 4 | Columbia | Wireless | SUNCOM DBA T-MOBILE USA (8645) | CLMASCSN13Z | 434 | — | — |
| 803-200 | 5 | Columbia | Landline or VoIP | METROPCS, INC. (5562) | CLMASCSN13Z | 434 | — | — |
| 803-200 | 6 | Columbia | Landline or VoIP | METROPCS, INC. (5562) | CLMASCSN13Z | 434 | — | — |
| 803-200 | 7 | Columbia | Wireless | SUNCOM DBA T-MOBILE USA (8645) | CLMASCSN13Z | 434 | — | — |
| 803-200 | 8 | Columbia | Wireless | SUNCOM DBA T-MOBILE USA (8645) | CLMASCSN13Z | 434 | — | — |
| 803-200 | 9 | Columbia | Wireless | SUNCOM DBA T-MOBILE USA (8645) | CLMASCSN13Z | 434 | — | — |
| 803-200 | A | Columbia | Landline or VoIP | PBT COMMUNICATIONS, INC. - SC (3453) | PELION | 434 | — | — |
| 803-201 | 0 | Columbia | Wireless | SUNCOM DBA T-MOBILE USA (8645) | CLMASCSN13Z | 434 | — | — |
| 803-201 | 1 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-201 | 2 | Columbia | Wireless | SUNCOM DBA T-MOBILE USA (8645) | CLMASCSN13Z | 434 | — | — |
| 803-201 | 3 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-201 | 4 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-201 | 5 | Columbia | Wireless | SUNCOM DBA T-MOBILE USA (8645) | CLMASCSN13Z | 434 | — | — |
| 803-201 | 6 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-201 | 7 | Columbia | Wireless | SUNCOM DBA T-MOBILE USA (8645) | CLMASCSN13Z | 434 | — | — |
| 803-201 | 8 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-201 | 9 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-201 | A | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-202 | A | North Augusta | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | NORTH AUGUSTA | 442 | — | — |
| 803-203 | 0 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-203 | 1 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-203 | 2 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-203 | 3 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-203 | 4 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-203 | 5 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-203 | 6 | Rock Hill | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA SC- LLC (635C) | CHRLNCCA64Z | 422 | — | — |
| 803-203 | 7 | Rock Hill | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CHRXNCGVGT0 | 422 | — | — |
| 803-203 | 8 | Rock Hill | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CHRXNCGVGT0 | 422 | — | — |
| 803-203 | 9 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-203 | A | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-204 | 0 | Newberry | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-204 | 1 | Newberry | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-204 | 2 | Newberry | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-204 | 3 | Newberry | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-204 | 4 | Newberry | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-204 | 5 | Newberry | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-204 | 6 | Newberry | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-204 | 7 | Newberry | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-204 | 8 | Newberry | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-204 | 9 | Newberry | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-204 | A | Newberry | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-205 | 0 | Columbia | Landline or VoIP | VONAGE AMERICA LLC (197D) | CLMASCSN24Z | 434 | — | — |
| 803-205 | 1 | Columbia | Landline or VoIP | TWC IP ENABLED SERVICES, LLC (793K) | CLMASCSN46Z | 434 | — | — |
| 803-205 | 2 | Columbia | Landline or VoIP | ONVOY, LLC - SC (548E) | CLMASCSNXSY | 434 | — | — |
| 803-205 | 3 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-205 | 4 | Columbia | Landline or VoIP | TWC IP ENABLED SERVICES, LLC (793K) | CLMASCSN46Z | 434 | — | — |
| 803-205 | 5 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-205 | 6 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-205 | 7 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-205 | 8 | Columbia | Landline or VoIP | NUSO, LLC (551G) | CLMASCSN01Z | 434 | — | — |
| 803-205 | 9 | Columbia | Landline or VoIP | METROPCS, INC. (5562) | CLMASCSN13Z | 434 | — | — |
| 803-205 | A | Columbia | Landline or VoIP | VONAGE AMERICA LLC (197D) | CLMASCSN24Z | 434 | — | — |
| 803-206 | A | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-207 | 0 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-207 | 1 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-207 | 2 | Rock Hill | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CHRXNCGVGT0 | 422 | — | — |
| 803-207 | 3 | Rock Hill | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CHRXNCGVGT0 | 422 | — | — |
| 803-207 | 4 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-207 | 5 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-207 | 6 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-207 | 7 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-207 | 8 | Rock Hill | Landline or VoIP | LEVEL 3 TELECOM OF SOUTH CAROLINA, LLC - SC (5344) | CHRMNC72BMD | 422 | — | — |
| 803-207 | 9 | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-207 | A | Rock Hill | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CHRXNCYIBMD | 422 | — | — |
| 803-208 | A | Savannah River Site | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | NORTH AUGUSTA | 442 | — | — |
| 803-209 | A | Chester | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-210 | 0 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-210 | 1 | Columbia | Landline or VoIP | METROPCS, INC. (5562) | CLMASCSN13Z | 434 | — | — |
| 803-210 | 2 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA CAMDEN HWY | 434 | — | — |
| 803-210 | 3 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA BECKMAN ROAD | 434 | — | — |
| 803-210 | 4 | Columbia | Wireless | ONVOY SPECTRUM, LLC (624H) | CLMASCSN25Z | 434 | — | — |
| 803-210 | 5 | Columbia | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-210 | 6 | Columbia | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-210 | 7 | Columbia | Wireless | NEW CINGULAR WIRELESS PCS, LLC - GA (6214) | CLMASCPQGT0 | 434 | — | — |
| 803-210 | 8 | Columbia | Wireless | SUNCOM DBA T-MOBILE USA (8645) | CLMASCSN13Z | 434 | — | — |
| 803-210 | 9 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-210 | A | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA BECKMAN ROAD | 434 | — | — |
| 803-212 | 0 | Columbia | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - SC (5258) | CLMASCSNXMD | 434 | — | — |
| 803-212 | 1 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA SENATE ST | 434 | — | — |
| 803-212 | 2 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA SENATE ST | 434 | — | — |
| 803-212 | 3 | Columbia | Wireless | ONVOY SPECTRUM, LLC (624H) | CLMASCSN25Z | 434 | — | — |
| 803-212 | 4 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA SENATE ST | 434 | — | — |
| 803-212 | 5 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-212 | 6 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA SENATE ST | 434 | — | — |
| 803-212 | 7 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA SENATE ST | 434 | — | — |
| 803-212 | 8 | Columbia | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (6398) | CLMASCLNQMD | 434 | — | — |
| 803-212 | 9 | Columbia | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - SC (077F) | CLMASCSNX2Z | 434 | — | — |
| 803-212 | A | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA SENATE ST | 434 | — | — |
| 803-213 | 0 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA ST ANDREWS | 434 | — | — |
| 803-213 | 1 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA ST ANDREWS | 434 | — | — |
| 803-213 | 2 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA ST ANDREWS | 434 | — | — |
| 803-213 | 3 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA ST ANDREWS | 434 | — | — |
| 803-213 | 4 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA ST ANDREWS | 434 | — | — |
| 803-213 | 5 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA ST ANDREWS | 434 | — | — |
| 803-213 | 6 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA ST ANDREWS | 434 | — | — |
| 803-213 | 7 | Columbia | Landline | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (9417) | COLUMBIA ST ANDREWS | 434 | — | — |
Block-level assignments from the North American Numbering Plan administrator, via localcallingguide.com.
Assigned Prefixes
784
Assignment Blocks
5,925
Rate Centers
83
Carriers of Record
58
| Type | Blocks | Share |
|---|---|---|
| Landline | 1,114 | 19% |
| Landline or VoIP | 2,525 | 43% |
| Wireless | 2,286 | 39% |
| Carrier | Blocks |
|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 896 |
| BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 751 |
| NEW CINGULAR WIRELESS PCS, LLC - GA | 703 |
| ONVOY, LLC - SC | 530 |
| SUNCOM DBA T-MOBILE USA | 470 |
| BANDWIDTH.COM CLEC, LLC - SC | 371 |
| PAETEC ITEL, LLC | 311 |
| LEVEL 3 COMMUNICATIONS, LLC - SC | 241 |
| METROPCS, INC. | 173 |
| TWC IP ENABLED SERVICES, LLC | 169 |
| 48 other carriers | 1,310 |
Carrier of record for each block. Numbers ported to another carrier keep their original block assignment, so this is not a lookup of who serves a given number today.
| Rate Center | Prefixes | Blocks |
|---|---|---|
| Columbia | 252 | 1,772 |
| Rock Hill | 42 | 312 |
| Orangeburg | 37 | 267 |
| Aiken | 32 | 262 |
| North Augusta | 25 | 195 |
| Sumter | 20 | 130 |
| Camden | 19 | 159 |
| Lancaster | 16 | 116 |
| Barnwell | 15 | 125 |
| Newberry | 15 | 115 |
| North Sumter | 15 | 103 |
| Chester | 14 | 100 |
| Lexington | 13 | 73 |
| York | 12 | 121 |
| Batesburg | 11 | 101 |
| Fort Mill | 9 | 49 |
| Hampton | 9 | 89 |
| Bishopville | 8 | 69 |
| Chapin-Little Mountain South | 8 | 78 |
| Manning | 8 | 68 |
| Winnsboro | 8 | 67 |
| Allendale | 7 | 54 |
| Clover | 7 | 67 |
| Beech Island | 6 | 56 |
| Denmark | 6 | 54 |
| Johnston | 6 | 65 |
| Lake Wylie | 6 | 56 |
| Springfield-Salley | 6 | 61 |
| Eastover | 5 | 49 |
| New Ellenton | 5 | 55 |
| Bamberg | 4 | 44 |
| Bath | 4 | 34 |
| Bishopville Rural | 4 | 16 |
| Blackville | 4 | 42 |
| Edgefield | 4 | 44 |
| Graniteville | 4 | 44 |
| Lake Wylie West | 4 | 43 |
| North Manning | 4 | 14 |
| Prosperity | 4 | 43 |
| Savannah River Site | 4 | 4 |
| Sharon | 4 | 40 |
| Shaw AFB Heights | 4 | 23 |
| St Matthews | 4 | 33 |
| Summerton | 4 | 30 |
| Whitmire | 4 | 43 |
| Chapin-Little Mountain North | 3 | 33 |
| Hickory Grove | 3 | 32 |
| Holly Hill | 3 | 33 |
| Jackson | 3 | 33 |
| Mill Creek | 3 | 33 |
| Oakland | 3 | 7 |
| Pelion | 3 | 9 |
| Pocalla | 3 | 7 |
| Santee | 3 | 33 |
| Stateburg | 3 | 7 |
| Bowman | 2 | 20 |
| Branchville | 2 | 21 |
| Cameron | 2 | 14 |
| East Sumter | 2 | 4 |
| Ehrhardt | 2 | 22 |
| Elloree | 2 | 21 |
| Estill | 2 | 11 |
| Eutawville | 2 | 21 |
| Fairfax | 2 | 21 |
| Fort Lawn | 2 | 5 |
| Gilbert | 2 | 7 |
| Heath Springs | 2 | 8 |
| Kershaw | 2 | 5 |
| Lewisville | 2 | 3 |
| Lynchburg | 2 | 2 |
| Mayesville | 2 | 5 |
| North Summerton | 2 | 5 |
| Olar | 2 | 22 |
| Pinewood | 2 | 6 |
| Pond Branch | 2 | 6 |
| Ridge Spring | 2 | 6 |
| Ridgeway | 2 | 22 |
| Swansea | 2 | 6 |
| Wagener | 2 | 9 |
| Great Falls | 1 | 9 |
| North | 1 | 11 |
| Norway | 1 | 10 |
| Williston | 1 | 11 |
A rate center is the telephone exchange area a number is homed to. It sets local calling boundaries, and is not the caller's current location.
Area code 803 is a North American Numbering Plan (NANP) telephone area code assigned to South Carolina, United States. It is one of 6 area codes serving South Carolina. As population and demand for phone numbers grew, the region was divided into multiple numbering plan areas to avoid exhausting the available 7-digit number pool.
Yes. 803 is an active North American Numbering Plan (NANP) area code, currently assigned to South Carolina, United States. It is safe to answer or dial calls using this area code.
Area code 803 covers 83 cities and communities in South Carolina, including Aiken, Allendale, Bamberg, Barnwell, Batesburg, and 78 more localities. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 803 area code observe Eastern Time (IANA timezone: America/New_York). Eastern Time is UTC−5 in winter (EST) and UTC−4 in summer (EDT). When placing a call to a 803 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within South Carolina, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 803 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 803 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 803 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +18035550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.