Cities in area code 787

84 localities · NANPA data, current as of July 28, 2026.

787 numbers are anchored to 84 rate centers across Puerto Rico. Each row shows how many active prefixes the locality holds — a direct measure of its numbering footprint.

By numbering footprint the leading localities are Santurce, Rio Piedras, Trujillo Alto, Guaynabo, Bayamon Norte, Caguas, Ponce and Pueblo Viejo, and 75 smaller communities down to single-prefix localities. Prefix counts track lines in service, so the ranking is a reasonable proxy for where the code's subscribers actually are.

Metropolitan coverage: 49 rate centers belong to FCC top-100 metro areas.

Although Puerto Rico is a US territory, its numbering works exactly like a state's: each community below is a NANP rate center, calls from the mainland are domestic, and prefixes follow the same NXX rules.

Overlap note: 75 localities are shared with other area codes, so a neighbor's number may differ in its first three digits.

Clock-wise the coverage is Atlantic.

A caller's real location can differ: numbers port between carriers and follow their owners when they move. Use the prefix tables to see where a specific number block was issued.

FAQ

What is the biggest city in area code 787?

Santurce holds the most active prefixes (180), making it the code's largest numbering locality.

How many places does 787 cover?

84 rate centers in Puerto Rico hold active 787 prefixes, from Santurce down to communities with a single prefix.

Does a 787 number guarantee the caller lives in one of these places?

No — the tables show where number blocks were issued. Porting and VoIP let people keep or acquire numbers anywhere.