497

Supplement dated September 1, 2023 to the Initial Summary Prospectus, Updating Summary Prospectus and Statutory
Prospectus dated May 1, 2023 for the Pacific Advisory Variable Annuity contracts issued by Pacific Life Insurance Company
and
Pacific Advisory Variable Annuity contracts issued by Pacific Life & Annuity Company

The purpose of this supplement is to update certain underlying fund information. This supplement must be preceded or accompanied by the Initial Summary Prospectus, Updating Summary Prospectus, or Statutory Prospectus (collectively, the "Prospectus") for your Contract, as supplemented. Capitalized terms used in this supplement are defined in your Prospectus unless otherwise defined herein. "We'', "us'', or "our" refer to Pacific Life Insurance Company or Pacific Life & Annuity Company, as applicable; "you" or "your" refer to the Contract Owner. You can obtain a copy of the current Prospectus by contacting us at (800) 722-4448 or (800) 748-6907 for New York Contracts, or online at PacificLife.com/Prospectuses. Please retain this supplement for future reference.

The underlying fund information related to Current Expenses in the APPENDIX: FUNDS AVAILABLE UNDER THE CONTRACT section is deleted and replaced with the following underlying fund information:

Investment Objective	Fund; Advisor (Subadvisor)	Current Expenses		Average Annual Total Returns (as of 12/31/22)
				1 Year			5 Year		10 Year
Seeks high total investment return.	BlackRock Global Allocation V.I. Fund Class I; BlackRock Advisors, LLC		0.77%1​		-15.86	%		3.50%		5.06%

¹​ To help limit Fund expenses, Fund advisers have contractually agreed to reduce investment advisory fees or otherwise reimburse certain Funds which reflect temporary fee reductions. There can be no assurance that Fund expense waivers or reimbursements will be extended beyond their current terms as outlined in each Fund prospectus, and they may not cover certain expenses such as extraordinary expenses. See each Fund prospectus for complete information regarding these arrangements.

Form No VASUP0923

XML

N-4

Sep. 01, 2023

Prospectus:

Document Type

N-4

Entity Registrant Name

SEPARATE ACCOUNT A OF PACIFIC LIFE INSURANCE CO

Entity Central Index Key

0000935823

Entity Investment Company Type

N-4

Document Period End Date

Sep. 01, 2023

Amendment Flag

false

Item 17. Portfolio Companies (N-4) [Text Block]

The underlying fund information related to Current Expenses in the APPENDIX: FUNDS AVAILABLE UNDER THE CONTRACT section is deleted and replaced with the following underlying fund information:

Investment Objective	Fund; Advisor (Subadvisor)	Current Expenses		Average Annual Total Returns (as of 12/31/22)
				1 Year			5 Year		10 Year
Seeks high total investment return.	BlackRock Global Allocation V.I. Fund Class I; BlackRock Advisors, LLC		0.77%1​		-15.86	%		3.50%		5.06%

¹​ To help limit Fund expenses, Fund advisers have contractually agreed to reduce investment advisory fees or otherwise reimburse certain Funds which reflect temporary fee reductions. There can be no assurance that Fund expense waivers or reimbursements will be extended beyond their current terms as outlined in each Fund prospectus, and they may not cover certain expenses such as extraordinary expenses. See each Fund prospectus for complete information regarding these arrangements.

Portfolio Companies [Table Text Block]

Investment Objective	Fund; Advisor (Subadvisor)	Current Expenses		Average Annual Total Returns (as of 12/31/22)
				1 Year			5 Year		10 Year
Seeks high total investment return.	BlackRock Global Allocation V.I. Fund Class I; BlackRock Advisors, LLC		0.77%1​		-15.86	%		3.50%		5.06%

¹​ To help limit Fund expenses, Fund advisers have contractually agreed to reduce investment advisory fees or otherwise reimburse certain Funds which reflect temporary fee reductions. There can be no assurance that Fund expense waivers or reimbursements will be extended beyond their current terms as outlined in each Fund prospectus, and they may not cover certain expenses such as extraordinary expenses. See each Fund prospectus for complete information regarding these arrangements.

Temporary Fee Reductions, Current Expenses [Text Block]

¹​ To help limit Fund expenses, Fund advisers have contractually agreed to reduce investment advisory fees or otherwise reimburse certain Funds which reflect temporary fee reductions. There can be no assurance that Fund expense waivers or reimbursements will be extended beyond their current terms as outlined in each Fund prospectus, and they may not cover certain expenses such as extraordinary expenses. See each Fund prospectus for complete information regarding these arrangements.

BlackRock Global AllocationV.I. Fund Class I [Member]

Prospectus:

Portfolio Company Objective [Text Block]

Seeks high total
investment return.

Portfolio Company Name [Text Block]

BlackRock Global Allocation
V.I. Fund Class I

Portfolio Company Adviser [Text Block]

BlackRock
Advisors, LLC

Current Expenses [Percent]

0.77%

^[1]

Average Annual Total Returns, 1 Year [Percent]

(15.86%)

Average Annual Total Returns, 5 Years [Percent]

3.50%

Average Annual Total Returns, 10 Years [Percent]

5.06%

[1] ¹​ To help limit Fund expenses, Fund advisers have contractually agreed to reduce investment advisory fees or otherwise reimburse certain Funds which reflect temporary fee reductions. There can be no assurance that Fund expense waivers or reimbursements will be extended beyond their current terms as outlined in each Fund prospectus, and they may not cover certain expenses such as extraordinary expenses. See each Fund prospectus for complete information regarding these arrangements.