TIA-568-C.2-1: Commercial Building Telecommunications Cabling Standard, Part 2: Balanced Twisted-Pair Cabling SystemsSection 6.4.
2.8 Vertical Riser Cable Support Vertical riser cable shall be supported at intervals not to exceed 96 inches (2.44 m) using non-metallic cable ties or other equivalent methods. Cable ties shall be placed in a manner that prevents damage to the cable jacket and conductors. The cable shall be supported at the top and bottom of the riser, and at intermediate points where necessary to prevent excessive sag.

National Electrical Code (NEC)Article 800: Communications CircuitsSection 800.170 Cable Support Cables shall be supported in accordance with Article 392, Part III. Cables shall be supported at intervals not exceeding 4.5 feet (1.37 m) in vertical runs and not exceeding 12 feet (3.66 m) in horizontal runs. Cables shall be supported at the top and bottom of the riser, and at intermediate points where necessary to prevent excessive sag.

Additional Guidance: For runs longer than 50 feet, it is recommended to use a stronger cable support system, such as a cable ladder or tray. The cable should be secured to the support using a method that prevents it from being pulled out or damaged.* It is also important to consider the weight of the cable when designing the support system. Flag for review