Maunabo, PR — rate center

NANPA rate center & CO code data, current as of July 28, 2026.

State
Puerto Rico
Area codes
787, 939
Active prefixes
2
Carriers
2
Pooled prefixes
2
LATA
820
Metro area
San Juan-Bayamón-Caguas, PR MSA

In NANP numbering, Maunabo, Puerto Rico is a rate center — the anchor point for local numbers. It is reached through 787, 939 (multiple area codes serve it).

2 central-office prefixes are currently anchored to this rate center, held by 2 different carriers. Pooling applies to 2 of them — individual thousands-blocks may belong to different companies.

The rate center belongs to the San Juan-Bayamón-Caguas, PR Metropolitan Statistical Area. Routing-wise it sits in LATA 820.

Because 787, 939 all serve this territory, two Maunabo numbers can look completely different while being neighbors — check the prefix, not just the area code.

Maunabo is a small rate center: 2 prefixes across 2 carriers serve it. Small localities like this often keep the same blocks for decades, so the prefix-to-place mapping tends to be stable.

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 Maunabo

Prefixes anchored to the Maunabo rate center
PrefixCode holderPooled
787-861 PUERTO RICO TEL. CO. Yes

FAQ

What area code is Maunabo, PR?

Maunabo is served by 2 area codes — 787, 939 — which overlay the same territory.

How many prefixes does Maunabo have?

2 active NXX prefixes are anchored to this rate center in NANPA records, held by 2 carriers.

Is a call from a Maunabo prefix really from Maunabo?

Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.