Can I apply for a visa at the Hanoi embassy if my flight is to Da Nang?

The user is planning to fly to Da Nang on February 4th but wishes to apply for a visa at the Hanoi embassy. They ask if there's a nearby city under Hanoi's jurisdiction or if they should simply book a local flight to Hanoi. Comments clarify that Da Nang falls under the Ho Chi Minh City embassy's jurisdiction and suggest traveling to Hanoi directly for visa application.