144/A 0001405026-26-000012 0001405026 XXXXXXXX LIVE 0001514416 Bandwidth Inc. 001-38285 2230 BANDMATE WAY RALEIGH NC 27607 800-808-5150 Raiford Daryl E Officer Common Raymond James & Associates, Inc.

880 Carillon Parkway St. Petersburg FL 33716

81000 1200420.00 29428894 03/04/2026 NASDAQ Common 07/21/2021 Restricted stock vesting under a registered plan Issuer N 81000 03/02/2026 N/A N Daryl Raiford

c/o Bandwidth Inc. 2230 Bandmate Way Raleigh NC 27607

Common 12/04/2025 6719 97405.28 Daryl Raiford

c/o Bandwidth Inc. 2230 Bandmate Way Raleigh NC 27607

Common 03/04/2026 12057 191171.34 The shares covered by this filing are restricted stock units that vested between 7/21/2021 and 3/2/2026. This Form 144/A is being filed solely to correct the name and the address of the broker selling the securities. 03/12/2026 /s/ Lorna A. Knick, Attorney-in-Fact for Daryl Raiford