SAN FRANCISCO (AP) — Authorities have released a list of more than 600 people who are unaccounted for after a deadly Northern California wildfire — but that doesn’t mean they are all actually missing.

Some of the people on the ever-evolving list compiled by the Butte County sheriff’s office have been confirmed dead by family and friends on social media. Others have been found safe, but authorities have not yet marked them as such.

And some, like Tamara Conry, say they never should have been on the list.

“My husband and I are not missing and never were!” Conry wrote Thursday night on a Facebook page dedicated to finding people from the fire zone in and around the incinerated town of Paradise. “We have no family looking for us … I called and left a message to take our names off.”

The confusion stems from the difficulty authorities face putting together a tally of the missing as they pore through hundreds of reports filed by people who could not reach loved ones in the aftermath of a blaze that spread with astonishing speed last week. It became the deadliest U.S. wildfire in a century.

Butte County Sheriff Kory Honey initially said 110 were missing, then revised the number to more than 220. He put it at 130 on Wednesday but released a list the same night with 300 names. He dramatically raised the number to 631 late Thursday.

He acknowledged the list is “dynamic” and includes reports of missing people from the disaster’s frantic early hours when authorities were flooded with calls.

“The chaos that we were dealing with was extraordinary. Now, we’re trying to go back out and make sure that we’re accounting for everyone,” Honea said, explaining that deputies were recording the earliest dispatch reports.

Jan Walcott of Oakland has been tweeting since the day after the fire started Nov. 8 that she was looking for her 78-year-old sister, Joyce Acheson, who lives in Paradise and has disabilities.

When the list of 631 missing emerged, her sister’s name was on it, along with someone with a similar spelling, Joyce Atchison — prompting speculation they might be the same person. But that’s not the case.

“There were two people with similar names, and it caused confusion,” Walcott said.

Her sister has still not been located. She said she is staying in touch with the sheriff’s office and checking social media for updates.

The wildfire has killed at least 63 people, with the number climbing daily.

Sheriff’s office spokeswoman Miranda Bowersox said Friday that the list of people who are unaccounted for is not a real-time reflection of who is missing. She said the office is distributing the names widely in the hope anyone on it might call in and say they’re OK.

“They might not be in the area anymore. There might be friends and family here who don’t know they left, that they went to another area,” she said.

Conry, whose Paradise house escaped largely unscathed, said she left a voicemail with the sheriff’s office Thursday night and called again Friday morning and talked to a person.

“She was excited to hear that we were OK,” said Conry, who is 55 and not 72 as the list reported.

Conry said friends and family knew she and her husband were all right because they had her cellphone numbers and she was posting on social media. She realizes that might not be the case for others.

“Nobody calls our home line except for telemarketers,” she said.

In last year’s wine country wildfires, Sonoma County authorities at one point listed more than 2,000 people as missing but slowly whittled down the number. In the end, 44 people died in that series of fires in several California counties.

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Associated Press writer Jocelyn Gecker in San Francisco contributed to this report.