Friday night's Game 6 of the NBA playoff series between the Hawks and the Boston Celtics is officially sold out. But some tickets were still available through online services and ticket brokers.

Here are where tickets could be purchased Wednesday afternoon:

• TicketExchange, run by Ticketmaster, is a Web site where season ticket holders can sell their seats. Ticket prices for Friday ranged from $55 to $940. A link to the TicketExchange is available here.

• Razorgator is a ticket broker with offices in Atlanta. Tickets for Friday were $65 to $450. "We definitely have a high demand for it now," said a customer service agent for Razorgator. Its Web site is www.razorgator.com, and its phone number, 404-881-2500.

• StubHub, an online marketplace for tickets, is a subsidiary of eBay Inc. It had more than 600 tickets for Friday's game at prices of $41 to $430, said Joellen Ferrer, a StubHub spokewoman. The average selling price was $100. Its Web site is www.stubhub.com, and its phone number, 866-STUBHUB (866-788-2482).

As an example of what was available, Ferrer cited a customer from Birmingham who bought two tickets from StubHub for the Friday night game for $801 each. The seats are in a prime location in Section 115.

Fans buying tickets online or on the street need to be wary of counterfeit tickets. Ferrer said buying from street scalpers are especially risky. Ticket brokers suggest sticking with companies that have a customer service line and guarantee the tickets. They also recommend paying with a credit card so that the charge can be disputed if the tickets turn out to be counterfeit.

StubHub is an online marketplace like eBay, in which sellers offer their tickets to the public through the Web site. However, StubHub guarantees the tickets. Any customer that ends up with a counterfeit ticket can call a customer service line and arrange to pick up comparable or better tickets for the same game, Ferrer said.

The game also will be broadcast on FSN South, ESPN and 790 The Zone.