Area codes · +1
Area code 939
Area code 939 is centred on Bayamón, Puerto Rico. We hold 763 allocated blocks for it across 75 rate centres, split 71% mobile, 23% landline and 6% VoIP.
The other area codes laid over 939
Area code 939 does not have Bayamón, Puerto Rico to itself. 1 other code — 787 — 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.
787864 blocks, 84 rate centres, mostly mobile
Each holds its own blocks and its own carrier mix, so a 939 number and a 787 number from the same street can report different line types. Filtering Bayamón, Puerto Rico by area code needs all 2 of them.
939 is not confined to Bayamón, Puerto Rico itself: its blocks sit across 75 rate centres, named in the table below.
Puerto Rico is split across 2 area codes — 787, 939. By allocated blocks 939 is the second largest of them, holding 47% of the Puerto Rico total.
Where 939 numbers are concentrated
Rate-centre names are reproduced as NANPA records them. The agency truncates them to ten characters, so longer names appear shortened elsewhere on this site.
| Rate centre | Blocks | Share of 939 |
|---|---|---|
| Bayamonnor | 1,108 | 145% |
| Santurce | 343 | 45% |
| Carolina | 169 | 22% |
| Ponce | 150 | 20% |
| Bayamonsur | 125 | 16% |
| Aguadilla | 122 | 16% |
| Caguas | 85 | 11% |
| Trujilloal | 82 | 11% |
| Arecibo | 76 | 10% |
| Manati | 75 | 10% |
| Cayey | 73 | 10% |
| Arroyo | 67 | 9% |
| Naranjito | 59 | 8% |
| San German | 52 | 7% |
| Fajardo | 47 | 6% |
| Mayaguez | 47 | 6% |
| Riopiedras | 39 | 5% |
| Puebloviej | 36 | 5% |
| Toa Alta | 30 | 4% |
| Canovanas | 29 | 4% |
| Levittown | 27 | 4% |
| Rincon | 25 | 3% |
| Santurcees | 24 | 3% |
| Vega Alta | 24 | 3% |
51 further rate centres in 939 hold fewer blocks than these.
Carriers holding the most 939 blocks
T-Mobile USA, Inc.192 blocks
AT&T Wireless122 blocks
Puerto Rico Telco Dba Claro Puerto Rico (Verizon Wireless)87 blocks
Neutral Tandem - Pr (Intelliquent)71 blocks
Onvoy Spectrum69 blocks
Lumen Technologies Puerto Rico, Llc (Centurylink, Inc)56 blocks
The largest holder, T-Mobile USA, Inc., 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 939 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 939 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 939?
Area code 939 covers Bayamón, Puerto Rico. It is not the only code there: 787 is an overlay on the same rate centres, so a Bayamón, Puerto Rico number can start with any of them.
Is a 939 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 939 the split runs 71% mobile, 23% landline and 6% VoIP, so mobile is the most likely single answer.
Which carriers hold 939 numbers?
The largest holders are T-Mobile USA, Inc., AT&T Wireless, Puerto Rico Telco Dba Claro Puerto Rico (Verizon Wireless). That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 939 numbers are there?
The code holds 763 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 939 covers on the order of 763,000 possible numbers — most of which have never been issued to anyone.