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of 8821/2848’s

Caution:

Internal Revenue Manual Part 21. Customer Account Services · 2026-10-03 edition · updated 2026-10-04 · United States

The Telephone Number fields cannot accept most international phone numbers. If an international phone number is listed, leave this field blank and enter the phone number in the Remarks along with a note that it is an international phone number.

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▸Contents — Internal Revenue Manual Part 21. Customer Account Services

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