Area Codes (DDD), Prefixes, and Special Numbers

Due to the constant increase in telephone lines, the need arose to adopt certain standards to increase numerical combinations and facilitate the identification of telephone information. In Brazil, the agency responsible for standardizing numbering is Anatel.

Fixed telephony (STFC) and mobile (SMP) prefixes

The telephone number is formed by eight digits (now nine for mobile phones). The first four form the operator identifier prefix. The first digit defines the type of telephony:

• Fixed telephony (STFC) — Prefixes with first digit between 2 and 5
• Mobile telephony (SMP) — Prefixes with first digit between 6 and 9

Mobile telephony ranges

• 9 — Bands A (96-99) and B (91-94)
• 8 — Bands D and E
• 7 — Cellular and Trunking (Nextel)
• 6 — Bands A, B, D, and E (used in SP from 2008)

Call identifier prefixes

• 0 — National prefix (national long distance)
• 00 — International prefix (international long distance)
• 90 — Collect call prefix

Carrier Selection Code (CSP)

Code used to select the carrier for long-distance calls. Each carrier has its own unique code (e.g., 21 Embratel, 41 TIM, 14 Brasil Telecom).

Routing Number (RN) Codes

RN codes are used to identify the service and operator. RN1 is composed of five digits:

• 551, 552, 558 — STFC operators
• 553 — SMP operators

Non-geographic codes

• 900 — Originator pays
• 800 — Destination pays
• 500 — Donation intent registration (maximum R$ 30.00)
• 300 — Originator is responsible for payment