Brazil • NPA 86
☎️ Central Office Exchange (NXX)
+55 (86) 405 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +55 (86) 405. Central office block assigned to Piauí, Brazil.
Standard Subscriber Format
+55 (86) 405-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
86
Primary Location
Piauí
Service Type
Landline
📋 Central Office Exchange 405 Routing Details
The 405 exchange code (central office prefix) operates within the 86 Numbering Plan Area (NPA) servicing Piauí, Brazil. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +55 (86) 405 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.
🌐 Dialing Instructions
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Domestic Calls: Dial
086 405-1234or local national format. -
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International Calls: Dial
+55 86 405-1234from outside Brazil. -
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E.164 Standard:
+5586405XXXX
📞 Nearby Exchanges in Area Code 86
View All Area Code 86 Exchanges ›❓ Frequently Asked Questions
What area code is +55 (86) 405?
Phone numbers starting with +55 (86) 405 belong to the 86 area code in Piauí, Brazil, routed via exchange block 405.
How do I call a 405 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +55, then 86, and the subscriber number.
Which provider operates the 405 prefix in Piauí?
Telecom services for the 405 exchange block in Piauí are primarily assigned to Local Network Carrier for Landline connections.