934 area code — Riverhead, NY geographic
Phone numbers beginning 934 are registered to the Riverhead area of New York (Eastern time zone). The code entered service on July 16, 2016. Together with 631 it forms the 631/934 overlay. Because of number portability and VoIP, the area code tells you where the number was issued, not where the caller is right now.
NANPA lists 123 active NXX prefixes in 934, assigned to 23 carriers. 122 of those prefixes are pooled — shared between carriers in thousands-number blocks. The code spans 45 rate centers (billing localities).
To check where a specific 934 number was issued, look up its six-digit prefix; to check who is actually calling, ignore the display and verify through an official callback number — caller ID is assertable and routinely spoofed.
Its parent code is 631, which it left in 2016.
Official projections put exhaust for the 631/934 complex at 3Q 2079.
The dialing plan is 10D for home-NPA local calls and 1+10D across codes.
Largest localities in 934
| Locality (rate center) | Active prefixes | Also served by |
|---|---|---|
| Riverhead | 13 | 631 |
| Amityville | 11 | 516, 631 |
| Brentwood | 7 | 516, 631 |
| Babylon | 6 | 631 |
| Patchogue | 5 | 631 |
| Yaphank | 5 | 631 |
| Huntington | 4 | 631 |
| Bellport | 4 | 631 |
| Central Islip | 4 | 516, 631 |
| Smithtown | 4 | 631 |
FAQ
Is 934 a toll-free number?
No. 934 is a geographic code; calls are billed like any other domestic call. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.
Why do 631 and 934 cover the same place?
They are overlays: when a code runs low on numbers, a new code is added over the same territory instead of splitting it. The 631/934 complex shares one service area, and local calls are dialed with 10 digits.
Will 934 run out of numbers?
NANPA's current forecast projects exhaust in 3Q 2079 — decades of capacity remain.