Area codes · +1
Area code 787
Area code 787 is centred on San Juan, Puerto Rico. We hold 864 allocated blocks for it across 84 rate centres, split 82% mobile, 17% landline and 0% VoIP.
The other area codes laid over 787
Area code 787 does not have San Juan, Puerto Rico to itself. 1 other code — 939 — 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.
939763 blocks, 75 rate centres, mostly mobile
Each holds its own blocks and its own carrier mix, so a 787 number and a 939 number from the same street can report different line types. Filtering San Juan, Puerto Rico by area code needs all 2 of them.
787 is not confined to San Juan, Puerto Rico itself: its blocks sit across 84 rate centres, named in the table below.
Puerto Rico is split across 2 area codes — 787, 939. By allocated blocks 787 is the largest of them, holding 53% of the Puerto Rico total.
Where 787 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 787 |
|---|---|---|
| Santurce | 920 | 106% |
| Guaynabo | 196 | 23% |
| Riopiedras | 169 | 20% |
| Bayamonnor | 159 | 18% |
| Caguas | 158 | 18% |
| Ponce | 144 | 17% |
| Arecibo | 115 | 13% |
| Trujilloal | 111 | 13% |
| Aguadilla | 92 | 11% |
| Carolina | 88 | 10% |
| Puebloviej | 79 | 9% |
| Fajardo | 70 | 8% |
| Mayaguez | 64 | 7% |
| Cayey | 58 | 7% |
| Manati | 58 | 7% |
| Rio Grande | 57 | 7% |
| San German | 57 | 7% |
| Humacao | 50 | 6% |
| Guayanilla | 46 | 5% |
| Naranjito | 46 | 5% |
| Levittown | 45 | 5% |
| Vega Baja | 37 | 4% |
| Arroyo | 34 | 4% |
| Cabo Rojo | 34 | 4% |
60 further rate centres in 787 hold fewer blocks than these.
Carriers holding the most 787 blocks
Puerto Rico Tel. Co.231 blocks
AT&T Wireless162 blocks
T-Mobile USA, Inc.154 blocks
Liberty Mobile Puerto Rico Inc.74 blocks
Puerto Rico Telco Dba Claro Puerto Rico66 blocks
Optivon Telecommunications Services, Inc. - Pr33 blocks
The largest holder, Puerto Rico Tel. Co., has 27% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 787 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 787 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 787?
Area code 787 covers San Juan, Puerto Rico. It is not the only code there: 939 is an overlay on the same rate centres, so a San Juan, Puerto Rico number can start with any of them.
Is a 787 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 787 the split runs 82% mobile, 17% landline and 0% VoIP, so mobile is the most likely single answer.
Which carriers hold 787 numbers?
The largest holders are Puerto Rico Tel. Co., 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 787 numbers are there?
The code holds 864 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 787 covers on the order of 864,000 possible numbers — most of which have never been issued to anyone.