AT&T customers having trouble with their wireless telephones could face continued problems today, according to a customer service representative.

Kimberly Coleman, with AT&T, said the company is aware of the problem and is working on it. After checking into the AT&T information system, Coleman couldn't say how widespread the problem is, only that Hawai'i is having issues.

"It's saying some customers are able to make or receive calls but they're dropping," she said, explaining it could be this afternoon or evening before the problem is fixed.

"Some people cannot make or receive at all. It's like across the Hawai'i area."

Dawn Nekorchuk, who works Downtown, said her iPhone hadn't worked properly since about 9 a.m., but she only noticed the problem because another co-worker asked her about her own iPhone.

"There's no service, no bars," Nekorchuk said. "You can't make any calls and I didn't have data earlier but now I have very, very slow data."

Courtney Pendleton, a spokesman for AT&T in California, said the company knew there was a hardware problem but had no estimate on when it might be fixed.

"Our technicians are continuing to make progress," said Pendleton.

"We'll continue to provide more information as it becomes available. We certainly do apologize for any inconvenience to our customers."

An AT&T customer who works at Pearl Harbor and didn't want to be identified said service is sporadic and his friends are tweeting about it. His iPhone had bars but when he called his office land line, the call didn't go through.