Area Code 631
Area code 631 covers Brentwood and nearby cities including Centereach, Central Islip, Commack in New York, in the Eastern Time.
Is a call from 631 a scam? Who called me from 631?
Cities in area code 631
Brentwood, Centereach, Central Islip, Commack, Copiague, Coram, Deer Park, Dix Hills, East Northport, East Patchogue, Hauppauge, Holbrook
Carriers in area code 631
Area code 631 spans 782 prefixes, about 32% wireless. Top carriers: VERIZON NEW YORK, INC., ONVOY, LLC- NY, OMNIPOINT COMMUNICATIONS, INC. - NY, CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY. Look up the carrier for a 631 number.
Other New York area codes
- 212 — New York City
- 315 — Syracuse
- 329 — Kingston
- 332 — New York City
- 347 — New York City
- 363 — Nassau
- 465 — New York City
- 516 — Nassau
- 518 — Albany
- 585 — Rochester
- 607 — Binghamton
- 624 — Buffalo
- 646 — New York City
- 680 — Syracuse
- 716 — Buffalo
- 718 — New York City
- 838 — Albany
- 845 — Poughkeepsie
- 914 — Westchester
- 917 — New York City
- 929 — New York City
- 934 — Riverhead
Nearby area codes
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of June 20, 2026. Refreshed monthly.