Many convenience groceries and packaging services sell prepaid calling cards in denominations up to $50. Many public pay phones at airports now accept American Express, MasterCard, and Visa. Local calls made from most pay phones cost either 25¢ or 35¢. Most long-distance and international calls can be dialed directly from any phone. To make calls within the United States and to Canada, dial 1 followed by the area code and the seven-digit number. For other international calls, dial 011 followed by the country code, city code, and the number you are calling.
For reversed-charge or collect calls, and for person-to-person calls, dial the number 0, then the area code and number; an operator will come on the line, and you should specify whether you are calling collect, person-to-person, or both. If your operator-assisted call is international, ask for the overseas operator.
For directory assistance ("Information"), dial tel. 411 for local numbers and national numbers in the U.S. and Canada. (A fee may apply.) For dedicated long-distance information, dial 1, then the appropriate area code plus 555-1212.
The parks have several cell towers in developed areas. Cell service is widely available on the floor of Yosemite Valley and parts of Tuolumne Meadows; in Sequoia & Kings Canyon, it is available in the villages but largely unavailable on the roads and in wilderness areas. Cell service is available in all of the gateway cities, but the signal can be weak.
Internet & Wi-Fi
In Yosemite, Internet access is available at Degnan's Cafe on fee-based terminals. Wi-Fi is available at Yosemite Lodge for a fee, and to guests of the Ahwahnee and Curry Village. In Sequoia & Kings Canyon, Wi-Fi is available at Wuksachi Lodge and in Grant Grove Village. Internet access is widely available in all of the gateways.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.