Input an Area Code (required) followed by the Prefix, or Exchange (optional):
-
If you were a paid member, you could be loading this into any version of Excel or Access (or any other software that understands CSV) right now for less than you paid for your breakfast or lunch today. If you are a member please login to access this and other functionality.
npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
301-433MDVERIZON MARYLAND, INC. (Verizon Communications)9212WSHNGTNZN5ALTWMDATDS000/00/0000Prefix Type: RBOC
Switch Name: WASZ 6
Switch Type: WECO 5ESS (Digital)
LATA: N/A
Tandem: N/A
Detailed Switch Info
Thousands block for 301-433
301-433-0MDVERIZON MARYLAND, INC. (Verizon Communications)9212WSHNGTNZN5ALTWMDATDS0N/APrefix Type: RBOC
Switch Name: WASZ 6
Switch Type: WECO 5ESS (Digital)
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-433-1MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)6855WSHNGTNZN5BTVLMD12CMA12/13/2007Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-433-2MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)6855WSHNGTNZN5BTVLMD12CMA05/19/2008Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-433-3MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)6855WSHNGTNZN5BTVLMD12CMA05/19/2008Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-433-4MDYMAX COMMUNICATIONS CORP. - MD (YMAX (a/k/a MagicJack))281EWSHNGTNZN5NOCLLIKNOWN09/24/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-433-5MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)6855WSHNGTNZN5BTVLMD12CMA03/14/2008Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-433-6MDCORE COMMUNICATIONS, INC.- MD2593WSHNGTNZN5ALTWMDATDS004/11/2019Prefix Type: CLEC
Switch Name: WASZ 6
Switch Type: WECO 5ESS (Digital)
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-433-7MDONVOY, LLC - MD (Sinch)876DWSHNGTNZN5NOCLLIKNOWN05/28/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-433-8MDCOMCAST IP PHONE, LLC (Comcast)318JWSHNGTNZN5ARTNVAARXDY07/30/2015Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
301-433-9MDMETROPCS, INC. (T-Mobile US, Inc)5562WSHNGTNZN5ALTWMDATDS011/05/2019Prefix Type: PCS
Switch Name: WASZ 6
Switch Type: WECO 5ESS (Digital)
LATA: N/A
Tandem: N/A
Detailed Switch Info
This information is not guaranteed to be accurate. User assumes all risk for any loss or gain resulting from use of this data.
Although I strive for accuracy and prompt updates of changed information, it is possible that there may be errors. If you see one, could you please report it?
Please report all errors, flames, questions, suggestions, and thanks to Paul Timmins
Please see the Frequently Asked Questions page if you have any questions.
Copyright ©2001-2023, Paul Timmins/Timmins Technologies, LLC. All rights reserved
Website Design and User Interface ©2010, Adam Botbyl/Revolutionary Solutions, LLC.
Colocation generously provided by Clear Rate Communications, Inc
Has this site changed your life? Made your job easier? I always love Fanmail and Suggestions.