| Change Control Event | Lumen telephony routing change from route plan 3 to 41 – moves the path for remaining numbers from ACH SBC to Enterprise SBC | Change Control Event | Lumen telephony routing change from route plan 3 to 41 – moves the path for remaining numbers from ACH SBC to Enterprise SBCCHG0079837 – Lumen telephony routing change from route plan 3 to 41 – moves the path for remaining numbers from ACH SBC to Enterprise SBC