Telecommunication networks require the correct allocation of network infrastructures and periodically planned maintenance to deliver services quickly and efficiently, to minimize out-of-service risk and to guarantee service level agreement satisfaction. It is particularly important to focus on the issue of optical-fibre-based infrastructures and the related huge amount of transmitted information. Network infrastructures that undergo allocation and maintenance operations can be of several types and can differ in terms of position, dimensions, services, field work and scheduled times for periodically planned maintenance. Identification (ID) data technology can be applied to solutions that focus on the proper management of network infrastructures. The ID uniquely identifies an infrastructure of interest in terms of its allocation and maintenance. Recommendation ITU-T L.361 deals with operations support systems for infrastructures management using ID technology, and provides the criteria for ID tag design. In the new edition of ITU-T Recommendation L.361, the optical ID tag which can be read from remote is added as a new optional ID tag technology, and a typical example of optical ID tag is provided in Appendix IV.