B737 Undifferentiated or Other Model
Flight Crew Last 90 Days 9.5; Flight Crew Total 7454; Flight Crew Type 4.8
Other / Unknown; Situational Awareness
ATC Issue All Types; Deviation - Altitude Crossing Restriction Not Met; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Issued Advisory / Alert; Flight Crew Became Reoriented; Flight Crew Returned To Clearance
ATC Equipment / Nav Facility / Buildings; Human Factors
On descending via to IAD; ATC advised us not to use the altimeter setting sent on the ATIS; as it was incorrect.  Upon resetting the altimeter; we observed we were about 200 feet off altitude crossing a fix.  ATC advised it was not our fault; and that it was a Nationwide problem.  He advised us not to worry about any repercussions. Cross Verification or Monitoring; Aircraft Settings; Did Not Cross-Verify Altimeter Settings.
A B737 First Officer is advised by ATC during descent into IAD; that the altimeter setting obtained via digital ATIS is not correct and that it is a nationwide problem.