National Telephone Number Directory

Area Code 303 with Prefix 423, line number 4000

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Section Overview:

This page contains a directory for all the phone numbers with prefix 423 and a line number starting with 4000 in the 303 area code of Denver, CO. The number range includes (303) 423-4000 to (303) 423-4999.

Phone Prefix	Range	Phones Recorded
(303) 423-40**	(303) 423-4000 - (303) 423-4099	55
(303) 423-41**	(303) 423-4100 - (303) 423-4198	68
(303) 423-42**	(303) 423-4201 - (303) 423-4299	60
(303) 423-43**	(303) 423-4300 - (303) 423-4399	68
(303) 423-44**	(303) 423-4400 - (303) 423-4498	75
(303) 423-45**	(303) 423-4500 - (303) 423-4599	67
(303) 423-46**	(303) 423-4600 - (303) 423-4699	64
(303) 423-47**	(303) 423-4700 - (303) 423-4798	64
(303) 423-48**	(303) 423-4800 - (303) 423-4899	62
(303) 423-49**	(303) 423-4900 - (303) 423-4999	64

The National Telephone Number Directory

Area Code 303 with Prefix 423, line number 4000