USA & Canada Zones
Zone 1. Northwestern Zone of North America: (Alaska), VY1/VE8 Yukon, the Northwest and Nunavut Territories west of 102 degrees (Includes the islands of Victoria, Banks, Melville, and Prince Patrick).
Zone 2. Northeastern Zone of North America: VO2 Labrador, the portion of VE2 Quebec north of the 50th parallel, the VE8 Northwest and Nunavut Territories east of 102 degrees (Includes the islands of King Christian, King William, Prince of Wales, Somerset, Bathurst, Devon, Ellesmere, Baffin and the Melville and Boothia Peninsulas, excluding Akimiski Island). more details on Zone 2 available here
Zone 3. Western Zone of North America: VE7, W6, and the W7 states of Arizona, Idaho, Nevada, Oregon, Utah, and Washington.
Zone 4. Central Zone of North America: VE3, VE4, VE5, VE6, VE8 Akimiski Island, and W7 states of Montana and Wyoming. W0, W9, W8 (except West Virginia), W5, and the W4 states of Alabama, Tennessee, and Kentucky.
Zone 5. Eastern Zone of North America: 4U1UN, CY9, CY0, FP, VE1, VE9, VY2, VO1 and the portion of VE2 Quebec south of the 50th parallel. VP9, W1, W2, W3 and the W4 states of Florida, Georgia, South Carolina, North Carolina, Virginia and the W8 state of West Virginia.