Part 1 of a series: covering introduction to Quantum Field Theory, creation and annihilation operators, fields and particles.
Where is the nearest IRS office from you? Below is a list of all IRS office addresses and phone numbers here in Arizona. Note that the IRS office in Chandler is just a working office for IRS employees and you have to have an appointment to meet with someone. All other location accept walk-ins. Phoenix IRS Office: 4041 N Central Ave Phoenix, AZ 85012 Phone: 602-636-9199.
Prior to 2001, the first two digits of an EIN (the EIN Prefix) indicated the business was located in a particular geographic area. In 2001, EIN assignment was centralized at three of the IRS campuses, although all 10 campuses can assign an EIN, if necessary.