Area codes · +1
Area code 934
Area code 934 is centred on Riverhead, New York. We hold 1,283 allocated blocks for it across 46 rate centres, split 46% mobile, 25% landline and 29% VoIP.
The other area codes laid over 934
Area code 934 does not have Riverhead to itself. 1 other code — 631 — serves the same rate centres, laid over the same ground rather than dividing it. That is an overlay: a new code added when the old one ran out of numbers, covering the same streets. Two neighbours can hold different area codes, so the code says roughly when a number was issued rather than where it sits.
6316,547 blocks, 54 rate centres, mostly landline
Each holds its own blocks and its own carrier mix, so a 934 number and a 631 number from the same street can report different line types. Filtering Riverhead by area code needs all 2 of them.
934 is not confined to Riverhead itself: its blocks sit across 46 rate centres, named in the table below.
New York is split across 21 area codes — 347, 929, 646, 845, 315, 934 and others. By allocated blocks 934 is the 19th largest of them, holding 1% of the New York total.
Where 934 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why St James and W Commack are shortened. Names are reproduced as recorded rather than expanded — the abbreviation is the key the block data is filed under.
| Rate centre | Blocks | Share of 934 |
|---|---|---|
| Riverhead | 152 | 12% |
| Amityville | 126 | 10% |
| Brentwood | 82 | 6% |
| Babylon | 64 | 5% |
| Patchogue | 53 | 4% |
| Yaphank | 49 | 4% |
| Bellport | 44 | 3% |
| Smithtown | 44 | 3% |
| Ronkonkoma | 43 | 3% |
| Centraislp | 42 | 3% |
| Huntington | 42 | 3% |
| Deer Park | 32 | 2% |
| Southamptn | 29 | 2% |
| Atlantic | 22 | 2% |
| Bay Shore | 22 | 2% |
| Lindenhst | 22 | 2% |
| Islip | 21 | 2% |
| Selden | 21 | 2% |
| St James | 21 | 2% |
| W Commack | 21 | 2% |
| Northport | 20 | 2% |
| Stonybrook | 20 | 2% |
| Ctrmorichs | 19 | 1% |
| Midland | 19 | 1% |
22 further rate centres in 934 hold fewer blocks than these.
Carriers holding the most 934 blocks
Onvoy320 blocks
AT&T Wireless142 blocks
T-Mobile USA, Inc.124 blocks
Omnipoint Communications, Inc.117 blocks
Onvoy Spectrum101 blocks
Commio, Llc56 blocks
The largest holder, Onvoy, has 25% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 934 number still reports the carrier it started with. Closing that gap needs a live query against the routing database. How line type is derived.
Check a single 934 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 934?
Area code 934 covers Riverhead, New York. It is not the only code there: 631 is an overlay on the same rate centres, so a Riverhead, New York number can start with any of them.
Is a 934 number a mobile or a landline?
It can be either, and the digits do not say which. North American mobile and landline numbers share the same ranges, so the answer comes from the carrier holding the block. In 934 the split runs 46% mobile, 25% landline and 29% VoIP, so mobile is the most likely single answer.
Which carriers hold 934 numbers?
The largest holders are Onvoy, AT&T Wireless, T-Mobile USA, Inc.. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 934 numbers are there?
The code holds 1,283 allocated blocks in our copy of the numbering plan. A block is 1,000 or 10,000 consecutive numbers depending on how deeply it has been pooled, so 934 covers on the order of 1,283,000 possible numbers — most of which have never been issued to anyone.