New York, United States
Eastern Time
1:23 AM
Area Code
631
State / Province
New York
Country
United States
Time Zone
Eastern Time
Area code 631 covers 54 cities and communities across New York, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+16315550100">+16315550100</a><a href="tel:+16315550199">+16315550199</a>Look up which exchange in New York a specific 631 number is homed to, and whether its block is wireline or wireless. See what a reverse lookup can establish before relying on the answer.
782 active prefixes in this area code, assigned as 6,469 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 6,469
| NPA-NXX | Block | Rate centre | Type | Carrier (OCN) | Switch | LATA | LIR | Dates |
|---|---|---|---|---|---|---|---|---|
| 631-200 | 0 | Bayport | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-200 | 1 | Bayport | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-200 | 2 | Bayport | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-200 | 3 | Bayport | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-200 | 4 | Bayport | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-200 | 5 | Bayport | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-200 | 6 | Bayport | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-200 | 7 | Bayport | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-200 | 8 | Bayport | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-200 | 9 | Bayport | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-200 | A | Bayport | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-201 | 0 | Amityville | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-201 | 1 | Amityville | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-201 | 2 | Amityville | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-201 | 3 | Amityville | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-201 | 4 | Amityville | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-201 | 5 | Amityville | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-201 | 6 | Amityville | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-201 | 7 | Amityville | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-201 | 8 | Amityville | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - NY (997E) | WHPLNYWPXOY | 132 | — | — |
| 631-201 | 9 | Amityville | Landline or VoIP | METROPCS, INC. (5562) | SYOSSET | 132 | — | — |
| 631-201 | A | Amityville | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-202 | 0 | Ronkonkoma | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-202 | 1 | Ronkonkoma | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-202 | 2 | Ronkonkoma | Landline or VoIP | HD CARRIER LLC (321J) | NYCMNY37UMD | 132 | — | — |
| 631-202 | 3 | Ronkonkoma | Landline or VoIP | HD CARRIER LLC (321J) | NYCMNY37UMD | 132 | — | — |
| 631-202 | 4 | Ronkonkoma | Landline or VoIP | HD CARRIER LLC (321J) | NYCMNY37UMD | 132 | — | — |
| 631-202 | 5 | Ronkonkoma | Landline or VoIP | HD CARRIER LLC (321J) | NYCMNY37UMD | 132 | — | — |
| 631-202 | 6 | Ronkonkoma | Landline or VoIP | HD CARRIER LLC (321J) | NYCMNY37UMD | 132 | — | — |
| 631-202 | 7 | Ronkonkoma | Wireless | OMNIPOINT COMMUNICATIONS, INC. - NY (6622) | SYOSSET | 132 | — | — |
| 631-202 | 8 | Ronkonkoma | Wireless | OMNIPOINT COMMUNICATIONS, INC. - NY (6622) | SYOSSET | 132 | — | — |
| 631-202 | 9 | Ronkonkoma | Wireless | OMNIPOINT COMMUNICATIONS, INC. - NY (6622) | SYOSSET | 132 | — | — |
| 631-202 | A | Ronkonkoma | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-203 | 0 | Central Islip | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-203 | 1 | Central Islip | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-203 | 2 | Central Islip | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-203 | 3 | Central Islip | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-203 | 4 | Central Islip | Landline or VoIP | CSC VOICE, LLC (612K) | WHPLNYGR1MD | 132 | — | — |
| 631-203 | 5 | Central Islip | Landline or VoIP | CABLEVISION LIGHTPATH, INC. - NY (7126) | WHITE PLAINS | 132 | — | — |
| 631-203 | 6 | Central Islip | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - NY (997E) | WHPLNYWPXOY | 132 | — | — |
| 631-203 | 7 | Central Islip | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - NY (997E) | WHPLNYWPXOY | 132 | — | — |
| 631-203 | 8 | Central Islip | Landline or VoIP | TELNYX LLC (073H) | NYCMNYBXJMD | 132 | — | — |
| 631-203 | 9 | Central Islip | Landline or VoIP | TELNYX LLC (073H) | NYCMNYBXJMD | 132 | — | — |
| 631-203 | A | Central Islip | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-204 | 0 | Southampton | Landline | VERIZON NEW YORK, INC. (9104) | SOUTHAMPTON | 132 | — | — |
| 631-204 | 1 | Southampton | Landline | VERIZON NEW YORK, INC. (9104) | SOUTHAMPTON | 132 | — | — |
| 631-204 | 2 | Southampton | Landline | VERIZON NEW YORK, INC. (9104) | SOUTHAMPTON | 132 | — | — |
| 631-204 | 3 | Southampton | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - NY (997E) | WHPLNYWPXOY | 132 | — | — |
| 631-204 | 4 | Southampton | Landline or VoIP | TELNYX LLC (073H) | NYCMNYBXJMD | 132 | — | — |
| 631-204 | 5 | Southampton | Landline or VoIP | CSC VOICE, LLC (612K) | WHPLNYGR1MD | 132 | — | — |
| 631-204 | 6 | Southampton | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-204 | 7 | Southampton | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | NYCMNYBWCMD | 132 | — | — |
| 631-204 | 8 | Southampton | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - NY (997E) | WHPLNYWPXOY | 132 | — | — |
| 631-204 | 9 | Southampton | Landline | VERIZON NEW YORK, INC. (9104) | SOUTHAMPTON | 132 | — | — |
| 631-204 | A | Southampton | Landline | VERIZON NEW YORK, INC. (9104) | SOUTHAMPTON | 132 | — | — |
| 631-205 | 0 | Yaphank | Landline | VERIZON NEW YORK, INC. (9104) | YAPHANK | 132 | — | — |
| 631-205 | 1 | Yaphank | Landline | VERIZON NEW YORK, INC. (9104) | YAPHANK | 132 | — | — |
| 631-205 | 2 | Yaphank | Landline | VERIZON NEW YORK, INC. (9104) | YAPHANK | 132 | — | — |
| 631-205 | 3 | Yaphank | Wireless | OMNIPOINT COMMUNICATIONS, INC. - NY (6622) | SYOSSET | 132 | — | — |
| 631-205 | 4 | Yaphank | Wireless | OMNIPOINT COMMUNICATIONS, INC. - NY (6622) | SYOSSET | 132 | — | — |
| 631-205 | 5 | Yaphank | Landline | VERIZON NEW YORK, INC. (9104) | YAPHANK | 132 | — | — |
| 631-205 | 6 | Yaphank | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-205 | 7 | Yaphank | Landline or VoIP | TC SYSTEMS, INC. - NY (7140) | HUNTINGTON | 132 | — | — |
| 631-205 | 8 | Yaphank | Wireless | OMNIPOINT COMMUNICATIONS, INC. - NY (6622) | SYOSSET | 132 | — | — |
| 631-205 | 9 | Yaphank | Landline | VERIZON NEW YORK, INC. (9104) | YAPHANK | 132 | — | — |
| 631-205 | A | Yaphank | Landline | VERIZON NEW YORK, INC. (9104) | YAPHANK | 132 | — | — |
| 631-206 | 0 | Bay Shore | Landline | VERIZON NEW YORK, INC. (9104) | BYSHNYBYRP0 | 132 | — | — |
| 631-206 | 1 | Bay Shore | Landline | VERIZON NEW YORK, INC. (9104) | BYSHNYBYRP0 | 132 | — | — |
| 631-206 | 2 | Bay Shore | Landline | VERIZON NEW YORK, INC. (9104) | BYSHNYBYRP0 | 132 | — | — |
| 631-206 | 3 | Bay Shore | Landline | VERIZON NEW YORK, INC. (9104) | BYSHNYBYRP0 | 132 | — | — |
| 631-206 | 4 | Bay Shore | Landline or VoIP | METROPCS, INC. (5562) | SYOSSET | 132 | — | — |
| 631-206 | 5 | Bay Shore | Landline or VoIP | ONVOY, LLC- NY (384C) | MANHATTAN | 132 | — | — |
| 631-206 | 6 | Bay Shore | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - NY (4006) | MANHATTAN | 132 | — | — |
| 631-206 | 7 | Bay Shore | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-206 | 8 | Bay Shore | Landline | VERIZON NEW YORK, INC. (9104) | BYSHNYBYRP0 | 132 | — | — |
| 631-206 | 9 | Bay Shore | Landline or VoIP | PAETEC ITEL, LLC (829J) | NYCMNYBXXAX | 132 | — | — |
| 631-206 | A | Bay Shore | Landline | VERIZON NEW YORK, INC. (9104) | BYSHNYBYRP0 | 132 | — | — |
| 631-207 | 0 | Patchogue | Landline | VERIZON NEW YORK, INC. (9104) | PATCHOGUE | 132 | — | — |
| 631-207 | 1 | Patchogue | Landline | VERIZON NEW YORK, INC. (9104) | PATCHOGUE | 132 | — | — |
| 631-207 | 2 | Patchogue | Landline | VERIZON NEW YORK, INC. (9104) | PATCHOGUE | 132 | — | — |
| 631-207 | 3 | Patchogue | Landline | VERIZON NEW YORK, INC. (9104) | PATCHOGUE | 132 | — | — |
| 631-207 | 4 | Patchogue | Landline | VERIZON NEW YORK, INC. (9104) | PATCHOGUE | 132 | — | — |
| 631-207 | 5 | Patchogue | Landline | VERIZON NEW YORK, INC. (9104) | PATCHOGUE | 132 | — | — |
| 631-207 | 6 | Patchogue | Landline | VERIZON NEW YORK, INC. (9104) | PATCHOGUE | 132 | — | — |
| 631-207 | 7 | Patchogue | Landline | VERIZON NEW YORK, INC. (9104) | PATCHOGUE | 132 | — | — |
| 631-207 | 8 | Patchogue | Landline or VoIP | PAETEC ITEL, LLC (829J) | NYCMNYBXXAX | 132 | — | — |
| 631-207 | 9 | Patchogue | Landline | VERIZON NEW YORK, INC. (9104) | PATCHOGUE | 132 | — | — |
| 631-207 | A | Patchogue | Landline | VERIZON NEW YORK, INC. (9104) | PATCHOGUE | 132 | — | — |
| 631-208 | 0 | Riverhead | Landline | VERIZON NEW YORK, INC. (9104) | RIVERHEAD | 132 | — | — |
| 631-208 | 1 | Riverhead | Landline | VERIZON NEW YORK, INC. (9104) | RIVERHEAD | 132 | — | — |
| 631-208 | 2 | Riverhead | Landline | VERIZON NEW YORK, INC. (9104) | RIVERHEAD | 132 | — | — |
| 631-208 | 3 | Riverhead | Landline | VERIZON NEW YORK, INC. (9104) | RIVERHEAD | 132 | — | — |
| 631-208 | 4 | Riverhead | Landline | VERIZON NEW YORK, INC. (9104) | RIVERHEAD | 132 | — | — |
| 631-208 | 5 | Riverhead | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (7133) | GARDEN CITY | 132 | — | — |
| 631-208 | 6 | Riverhead | Landline or VoIP | METROPCS, INC. (5562) | SYOSSET | 132 | — | — |
| 631-208 | 7 | Riverhead | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY (6959) | GNBGNY01AMD | 132 | — | — |
| 631-208 | 8 | Riverhead | Landline | VERIZON NEW YORK, INC. (9104) | RIVERHEAD | 132 | — | — |
| 631-208 | 9 | Riverhead | Landline | VERIZON NEW YORK, INC. (9104) | RIVERHEAD | 132 | — | — |
| 631-208 | A | Riverhead | Landline | VERIZON NEW YORK, INC. (9104) | RIVERHEAD | 132 | — | — |
| 631-209 | 0 | Shoreham | Landline | VERIZON NEW YORK, INC. (9104) | SHOREHAM | 132 | — | — |
Block-level assignments from the North American Numbering Plan administrator, via localcallingguide.com.
Assigned Prefixes
782
Assignment Blocks
6,469
Rate Centers
54
Carriers of Record
51
| Type | Blocks | Share |
|---|---|---|
| Landline | 890 | 14% |
| Landline or VoIP | 3,953 | 61% |
| Wireless | 1,626 | 25% |
| Carrier | Blocks |
|---|---|
| VERIZON NEW YORK, INC. | 889 |
| ONVOY, LLC- NY | 672 |
| OMNIPOINT COMMUNICATIONS, INC. - NY | 562 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 493 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 458 |
| METROPCS, INC. | 425 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 422 |
| CSC VOICE, LLC | 327 |
| CABLEVISION LIGHTPATH, INC. - NY | 302 |
| PAETEC ITEL, LLC | 290 |
| 41 other carriers | 1,629 |
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 |
|---|---|---|
| Brentwood | 127 | 1,027 |
| Farmingdale | 42 | 312 |
| Riverhead | 40 | 340 |
| Huntington | 34 | 230 |
| Central Islip | 32 | 269 |
| Amityville | 31 | 307 |
| Babylon | 28 | 228 |
| Deer Park | 27 | 227 |
| Patchogue | 26 | 236 |
| Ronkonkoma | 24 | 166 |
| Selden | 24 | 192 |
| Smithtown | 20 | 159 |
| Yaphank | 17 | 167 |
| Lindenhurst | 15 | 132 |
| Port Jefferson | 15 | 114 |
| Stony Brook | 15 | 112 |
| Bay Shore | 14 | 123 |
| Sayville | 14 | 94 |
| West Commack | 13 | 113 |
| Nassau Zone 9 | 12 | 24 |
| Northport | 12 | 89 |
| Southampton | 12 | 102 |
| Commack | 11 | 90 |
| Islip | 11 | 91 |
| Bayport | 9 | 87 |
| East Hampton | 9 | 79 |
| Atlantic | 8 | 68 |
| Bellport | 8 | 67 |
| Midland | 8 | 78 |
| Shoreham | 8 | 68 |
| Cold Spring Harbor | 7 | 52 |
| Eastport | 7 | 57 |
| Hampton Bays | 7 | 65 |
| Kings Park | 7 | 77 |
| Center Moriches | 6 | 46 |
| Fire Island | 6 | 53 |
| Sag Harbor | 6 | 47 |
| St James | 6 | 66 |
| Greenport (Suffolk) | 5 | 53 |
| Mattituck | 5 | 52 |
| Montauk Point | 5 | 53 |
| Orient | 5 | 47 |
| Wading River | 5 | 52 |
| Westhampton | 5 | 31 |
| Amagansett | 4 | 43 |
| Bridgehampton | 4 | 32 |
| Jamesport | 4 | 41 |
| Quogue | 4 | 40 |
| Southold | 4 | 42 |
| Water Mill | 4 | 40 |
| East Fire Island | 3 | 27 |
| Peconic | 3 | 30 |
| Shelter Island | 3 | 31 |
| Fishers Island | 1 | 1 |
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 631 is a North American Numbering Plan (NANP) telephone area code assigned to New York, United States. It is one of 23 area codes serving New York. 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. 631 is an active North American Numbering Plan (NANP) area code, currently assigned to New York, United States. It is safe to answer or dial calls using this area code.
Area code 631 covers 54 cities and communities in New York, including Amagansett, Amityville, Atlantic, Babylon, Bay Shore, and 49 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 631 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 631 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within New York, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 631 + 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 1 631 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 631 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +16315550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.