
Four companies achieved a position on Vertical Systems Group's 2022 U.S. Wavelength Services LEADERBOARD (in rank order based on billable circuit share): Lumen, Zayo, Verizon and AT&T. To qualify for a rank on this LEADERBOARD companies must have four percent (4%) or more of the U.S. market for retail and wholesale wavelength services. Wavelength circuits provide Layer 1 dedicated bidirectional gigabit-speed optical fiber connections between...