Optus codes and reviews (Australia)
Allocated prefixes for Optus: 401, 402, 403, 411, 412, 413, 421, 422, 423, 431, 432, 434, 435, 466, 468, 478, 479, 481, 482, 4839, 4890, 4891, 4892, 4893. Open a prefix to check a specific number.
Numbers with reviews: 52Total reviews: 80