Here is a quick page to show you the rank

structure in today's U. S. Air Force (bottom to top)

Airman Basic

AB (E-1)

Airman

Amn (E-2)

Airman First Class

A1C (E-3)

Senior Airman

SrA (E-4)

Staff Sergeant

SSgt (E-5)

Technical Sergeant

TSgt (E-6)

Master Sergeant

MSgt (E-7)

( This was my rank upon retirement )

Senior Master Sergeant

SMSgt (E-8)

Chief Master Sergeant

CMSgt (E-9)

Chief Master Sergeant

of the Air Force

CMSgtAF (E-9)

2nd Lieutenant

2Lt (O-1)

1st Lieutenant

1Lt (O-2)

Captain

Capt (O-3)

Major

Maj (O-4)

Lieutenant Colonel

LtC (O-5)

Colonel

Col (O-6)

Brigadier General

B Gen (O-7)

Major General

Maj Gen (O-8)

Lieutenant General

Lt Gen (O-9)

General

Gen (O-10)

General of the Air Force

GAF (O-11)