Warning: site is in maintainance mode, data may not be accurate and some queries may not work!
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
410-237MDVERIZON MARYLAND, INC. (Verizon Communications)9212BALTIMOREBLTMMDCH1DD00/00/0000Prefix Type: RBOC
Switch Name: BALTIMORE
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-237
410-237-0MDNUSO, LLC551GBALTIMOREBLTMMDCHDMD06/25/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-1MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036BALTIMORECLMAMDORGT001/16/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212BALTIMOREBLTMMDCH1DDN/APrefix Type: RBOC
Switch Name: BALTIMORE
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-3MDVERIZON MARYLAND, INC. (Verizon Communications)9212BALTIMOREBLTMMDCH1DDN/APrefix Type: RBOC
Switch Name: BALTIMORE
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-4MDCORE COMMUNICATIONS, INC.- MD2593BALTIMORENOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212BALTIMOREBLTMMDCH1DDN/APrefix Type: RBOC
Switch Name: BALTIMORE
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-6MDONVOY, LLC - MD (Inteliquent)876DBALTIMORENOCLLIKNOWN05/22/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-7MDONVOY, LLC - MD (Inteliquent)876DBALTIMORENOCLLIKNOWN11/01/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-8MDONVOY, LLC - MD (Inteliquent)876DBALTIMORENOCLLIKNOWN11/01/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-9MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036BALTIMORECLMAMDORGT001/16/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
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.