Gurabo, PR — rate center
- State
- Puerto Rico
- Active prefixes
- 5
- Carriers
- 4
- Pooled prefixes
- 3
- LATA
- 820
- Metro area
- San Juan-Bayamón-Caguas, PR MSA
Phone numbers "from Gurabo" are, precisely speaking, numbers whose prefixes are anchored to the Gurabo rate center of Puerto Rico, under 787, 939.
NANPA records show 5 active prefixes here across 4 carriers. 3 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.
The rate center belongs to the San Juan-Bayamón-Caguas, PR Metropolitan Statistical Area. 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 5 prefixes, Gurabo 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).
As always with US numbering: a prefix anchored to Gurabo tells you where the block was issued. The person calling may have ported the number, moved away, or be spoofing it entirely — verify callers through independently found contact details.
Prefixes anchored to Gurabo
| Prefix | Code holder | Pooled |
|---|---|---|
| 787-491 | OPTIVON TELECOMMUNICATIONS SERVICES, INC. - PR | No |
| 787-687 | LIBERTY MOBILE PUERTO RICO INC. | Yes |
| 787-712 | PUERTO RICO TEL. CO. | Yes |
| 787-737 | PUERTO RICO TEL. CO. | No |
FAQ
What area code is Gurabo, PR?
Gurabo is served by 2 area codes — 787, 939 — which overlay the same territory.
How many prefixes does Gurabo have?
5 active NXX prefixes are anchored to this rate center in NANPA records, held by 4 carriers.
Is a call from a Gurabo prefix really from Gurabo?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.