X0102 24F-2NT LIVE 723258 XXXXXXXX false N-4 MASSMUTUAL ASCEND LIFE INSURANCE CO 191 Rosa Parks Street Cincinnati OH X1 45202 Index Summit 6 Pro C000258755 INDEX ACHIEVER ADVISORY ANNUITY C000258158 Index Frontier 7 Annuity C000261636 Index Frontier 5 Annuity C000261637 Index Achiever Annuity C000261634 Index Frontier 7 Pro Annuity C000261638 Index Frontier 5 Pro Annuity C000261639 Index Summit 6 Pro Annuity with Death Benefit Return of Premium C000261635 Index Summit 6 Annuity C000261640 Index Summit 6 Annuity with Death Benefit Return of Premium C000261641 Index Frontier 5 Plus Annuity C000261642 333-276893 333-276475 333-276611 333-278200 333-278199 333-276780 12/31/2025 false false 0.00 1374863813.00 0.00 1374863813.00 0.00 (1374863813.00) 0.0001381 0.00 0 0.00 Effective May 1, 2025, the Registrant's registered index-linked annuity registration statements were converted from Form S-1 to Form N-4. As of May 1, 2025, the Registrant had $3,571,120,906 in remaining unsold securities registered under Form S-1 ("Unsold S-1 Interests"). In accordance with Instruction C.5. and as directed by Release Nos. 33-11294; 34-100450; IC-35273, the aggregate sales of $1,885,165,185 that would otherwise be reported in response to Item 5(i) above were reduced to $0 by the Unsold S-1 Interests. /s/ John P. Gruber John P. Gruber Senior Vice President & General Counsel - MassMutual Ascend Life Insurance Company 03/31/2026