Guanica, PR — rate center
- State
- Puerto Rico
- Active prefixes
- 4
- Carriers
- 3
- Pooled prefixes
- 3
- LATA
- 820
The Guanica rate center (Puerto Rico) anchors 4 active prefixes under area codes 787, 939. Rate centers, not city limits, are what phone numbers are legally tied to.
4 central-office prefixes are currently anchored to this rate center across 3 carriers. 3 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.
With only 4 prefixes, Guanica sits at the small end of Puerto Rico's rate centers — a handful of carrier blocks cover the whole locality, and a number from here is a fairly strong locality signal (before porting is considered).
Treat this data as geography of the number, not of the caller: porting, VoIP and caller-ID spoofing all detach the two. When a call matters, hang up and call back through an official number.
Prefixes anchored to Guanica
| Prefix | Code holder | Pooled |
|---|---|---|
| 787-569 | LIBERTY MOBILE PUERTO RICO INC. | Yes |
| 787-821 | PUERTO RICO TEL. CO. | No |
FAQ
What area code is Guanica, PR?
Guanica is served by 2 area codes — 787, 939 — which overlay the same territory.
How many prefixes does Guanica have?
4 active NXX prefixes are anchored to this rate center in NANPA records, held by 3 carriers.
Is a call from a Guanica prefix really from Guanica?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.