SUPPLEMENT DATED JULY 21, 2020

To the following variable annuity prospectuses:

Allianz Index Advantage^®
Allianz Index Advantage ADV^®
Allianz Index Advantage NF^®
Allianz Index Advantage Income^®
Dated May 1, 2020

ISSUED BY

Allianz Life Insurance Company of North America and Allianz Life^® Variable Account B

This supplement updates certain information contained in the prospectus and should be

attached to the prospectus and retained for future reference.

We are making the Index Performance Strategy with 3-Year Term Index Options available to Contracts issued on or after July 21, 2020 in Pennsylvania.

PRO-005-0520