Arroyo, PR — rate center
- State
- Puerto Rico
- Active prefixes
- 12
- Carriers
- 5
- Pooled prefixes
- 10
- LATA
- 820
The Arroyo rate center (Puerto Rico) anchors 12 active prefixes under area codes 787, 939. Rate centers, not city limits, are what phone numbers are legally tied to.
The rate center currently carries 12 working prefixes across 5 carriers. 10 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.
Routing-wise it sits in LATA 820.
Multiple area codes over one rate center (787/939) is the overlay pattern: same geography, different first three digits.
A Arroyo prefix on caller ID is a starting point, not proof of origin — numbers travel with their owners and displays can be spoofed. Use official callback numbers for anything sensitive.
Prefixes anchored to Arroyo
| Prefix | Code holder | Pooled |
|---|---|---|
| 787-271 | PUERTO RICO TEL. CO. | Yes |
| 787-341 | SUNCOM DBA T-MOBILE USA | Yes |
| 787-416 | OPTIVON TELECOMMUNICATIONS SERVICES, INC. - PR | No |
| 787-839 | PUERTO RICO TEL. CO. | No |
| 787-929 | SUNCOM DBA T-MOBILE USA | Yes |
FAQ
What area code is Arroyo, PR?
Arroyo is served by 2 area codes — 787, 939 — which overlay the same territory.
How many prefixes does Arroyo have?
12 active NXX prefixes are anchored to this rate center in NANPA records, held by 5 carriers.
Is a call from a Arroyo prefix really from Arroyo?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.