All available North American Numbering Plan Administration prefixes for 534 September 16, 2014 Tim 534-211 534-220 534-242 534-262 534-311 534-320 534-411 534-414 534-433 534-511 534-534 534-555 534-599 534-608 534-611 534-636 534-655 534-700 534-711 534-715 534-811 534-844 534-911 534-920 534-936 534-950 534-959 534-976