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Hours of Operation

Operating Hours

Presidents' Day Closing Information

The ARIN office will be closed on Monday, 20 February in observance of Presidents' Day, and will reopen with normal operating hours on Tuesday, 21 February.

The ARIN office is open from 7:00 AM to 7:00 PM ET, Monday through Friday. Outside operating hours, messages may be left for the ARIN Registration Services Help Desk (703-227-0660), ARIN's Billing Help Desk (703-227-9886), or on ARIN's main number (703-227-9840). Email to ARIN will continue to be processed when the office is closed; however in the event of holidays or closings due to inclement weather, responses or the processing of resource requests may be delayed.

Holidays

ARIN closes its office for the following holidays, and notes these closings at https://www.arin.net.

ARIN 2017 Holiday Schedule
New Year's Day Monday 2 January
Martin Luther King, Jr. Day Monday 16 January
Presidents' Day Monday 20 February
Memorial Day Monday 29 May
Independence Day Tuesday 4 July
Labor Day Monday 4 September
Thanksgiving Thursday - Friday 23 - 24 November
Christmas Monday - Tuesday 25 - 26 December

The ARIN office also closes early on 26 May, 1 September, 22 November, and 22 December.

Inclement Weather

Should the ARIN office close due to inclement weather or other extreme circumstance, such closings are noted at https://www.arin.net/.

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