MESCALERO, N.M.--(BUSINESS WIRE)-- #5G--Adtran today announced that Mescalero Apache Telecom, Inc. (MATI) is harnessing its fiber access solution to bring high-speed connectivity to rural tribal communities in New Mexico. Supported by a mix of loans and grant funds, MATI’s new infrastructure is the first full FTTH XGS-PON network to be built among any tribal nation.