Local calling guide: Rate centre information

Rate centre information

Washington Zone 12, MD [Prefix detail]

LATA: 236 WASHINGTON DC

LIR:

V: 05591 H: 01608

ILEC: 9212 VERIZON MARYLAND, INC.

Includes all or part of:

Layhill, MD (9212 VERIZON MARYLAND, INC.)

NPA 240:

293 371 433 471 516 560 590 868 970 973

NPA 301:

236 282 288 384 388 438 584 598 679 847 879 890 924 966 989

See all [Local Prefixes]

Local calling TO: [Reverse direction]

OCN	Rate centre	Plan type	Call type	Monthly limit (minutes)	Note	Effective date
	Ashton, MD
	Ashton (Baltimore LATA), MD
	Columbia, MD
	Damascus, MD
	Damascus (Hagerstown LATA), MD
	Gaithersburg, MD
	Laurel, MD
	Laurel (Baltimore LATA), MD
	Washington Zone 1, DC
	Washington Zone 10, MD
	Washington Zone 11, MD
	Washington Zone 13, MD
	Washington Zone 13 (Baltimore LATA), MD
	Washington Zone 14, MD
	Washington Zone 14 (Baltimore LATA), MD
	Washington Zone 15, MD
	Washington Zone 15 (Baltimore LATA), MD
	Washington Zone 16, MD
	Washington Zone 17, VA
	Washington Zone 19, VA
	Washington Zone 2, MD
	Washington Zone 3, MD
	Washington Zone 4, MD
	Washington Zone 4 (Baltimore LATA), MD
	Washington Zone 5, MD
	Washington Zone 6, MD
	Washington Zone 8, VA

*If OCN is blank, this indicates the default local calling area for all carriers. If OCN is not blank, then local calling is available for that OCN only.

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Local Calling Guide

Rate centre information