European route E123 is a Class A north-south reference European route that connects the Ural region with Central Asia, spanning 2,760 kilometres (1,710 mi).

Quick Facts E123, Route information ...

E123
Route information
Length	2,760 km (1,710 mi)
Major junctions
North end	Chelyabinsk, Russia
Major intersections	Troitsk Kostanai Derzhavinsk Kyzylorda Shymkent Tashkent Lyagin Koshkent Istaravshan Dushanbe
South end	Panji Poyon, Tajikistan
Location
Countries	Russia  Kazakhstan  Uzbekistan  Tajikistan
Highway system
International E-road network A Class B Class

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The E123 routes through four Asian countries:

 Russia

• A 310: Chelyabinsk - Troitsk - border with Kazakhstan

 Kazakhstan

• M 36: Podgorodka – Kostanai
• P 36: Kostanai - Zapadnoye
• A 16: Zapadnoye – Esil – Derzhavinsk – Arkalyk – Zhezkazgan
• A 17: Zhezkazgan – Kyzylorda
• M 32: Kyzylorda – Shymkent
• A 2: Shymkent – Frontovoy - Border of Uzbekistan

 Uzbekistan

•  M39 : Border of Kazakhstan - G‘ishtko‘prik - Tashkent - Chinoz - Sirdaryo
•  M34 : Sirdaryo - Xovos

 Tajikistan

•  РБ15  РБ15 Road: Border of Uzbekistan - Zarafshon - Istaravshan
•  РБ01  РБ01 Road: Istaravshan - Spitamen - Ayni - Dushanbe
•  РБ09  РБ09 Road: Dushanbe - Qizilqala - Bokhtar - Panji Poyon

 Afghanistan

• Sher Khan Bandar

The E123 is only signed in Russia and Kazakhstan. In Russia (as well as and Kazakhstan), European route numbers are signposted on direction signs, however this is not the case in many other Asian countries.^[1]