Air carrier captain reported overseas GPS jamming.

Attributes
ACN	1691602
Time
Date	201910
Local Time Of Day	1801-2400
Place
Locale Reference	LLLL.ARTCC
State Reference	FO
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Widebody Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	GPS & Other Satellite Navigation
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument
Experience	Flight Crew Last 90 Days 111 Flight Crew Total 12007 Flight Crew Type 82
Events
Anomaly	ATC Issue All Types Inflight Event / Encounter Other / Unknown

Narrative:

Approximately 200 miles from llbg; as we enter or exit their airspace; the GPS becomes unreliable. It is not an airplane issue and appears to be some sort of temporary blocking of the signal. This is an informational only report at the request of flight operations.

Original NASA ASRS Text

Title: Air carrier Captain reported overseas GPS jamming.

Narrative: Approximately 200 miles from LLBG; as we enter or exit their airspace; the GPS becomes unreliable. It is not an airplane issue and appears to be some sort of temporary blocking of the signal. This is an informational only report at the request of Flight Operations.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.