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.

🔎 Tip: Click any Company, OCN, Rate Center, or CLLI to explore related telecom data

npa-nxxState/ProvinceCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
405-558OKSOUTHWESTERN BELLN/A9533OKLA CITYOKCYOKUNDS000/00/0000Prefix Type: RBOC
Switch Name: University
Switch Type: N/A
LATA: Oklahoma City OK (536)
Tandem: OKCYOKCE13T
🔧 Explore Switch(CLLI: OKCYOKUNDS0))
405-558 is split into 1,000-number blocks - detail below
405-558-0XXXOKSOUTHWESTERN BELLN/A9533OKLA CITYOKCYOKUNDS0N/APrefix Type: RBOC
Switch Name: University
Switch Type: N/A
LATA: Oklahoma City OK (536)
Tandem: OKCYOKCE13T
🔧 Explore Switch(CLLI: OKCYOKUNDS0))
405-558-1XXXOKUNITED STATES CELLULAR - OKN/A6272OKLA CITYOKCBOKHVCM003/16/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Oklahoma City OK (536)
Tandem: N/A
🔧 Explore Switch(CLLI: OKCBOKHVCM0))
405-558-2XXXOKSOUTHWESTERN BELLN/A9533OKLA CITYOKCYOKUNDS0N/APrefix Type: RBOC
Switch Name: University
Switch Type: N/A
LATA: Oklahoma City OK (536)
Tandem: OKCYOKCE13T
🔧 Explore Switch(CLLI: OKCYOKUNDS0))
405-558-3XXXOKSOUTHWESTERN BELLN/A9533OKLA CITYOKCYOKUNDS0N/APrefix Type: RBOC
Switch Name: University
Switch Type: N/A
LATA: Oklahoma City OK (536)
Tandem: OKCYOKCE13T
🔧 Explore Switch(CLLI: OKCYOKUNDS0))
405-558-4XXXOKSOUTHWESTERN BELLN/A9533OKLA CITYOKCYOKUNDS0N/APrefix Type: RBOC
Switch Name: University
Switch Type: N/A
LATA: Oklahoma City OK (536)
Tandem: OKCYOKCE13T
🔧 Explore Switch(CLLI: OKCYOKUNDS0))
405-558-5XXXOKSOUTHWESTERN BELLN/A9533OKLA CITYOKCYOKUNDS0N/APrefix Type: RBOC
Switch Name: University
Switch Type: N/A
LATA: Oklahoma City OK (536)
Tandem: OKCYOKCE13T
🔧 Explore Switch(CLLI: OKCYOKUNDS0))
405-558-6XXXOKSOUTHWESTERN BELLN/A9533OKLA CITYOKCYOKUNDS0N/APrefix Type: RBOC
Switch Name: University
Switch Type: N/A
LATA: Oklahoma City OK (536)
Tandem: OKCYOKCE13T
🔧 Explore Switch(CLLI: OKCYOKUNDS0))
405-558-7XXXOKSOUTHWESTERN BELLN/A9533OKLA CITYOKCYOKUNDS0N/APrefix Type: RBOC
Switch Name: University
Switch Type: N/A
LATA: Oklahoma City OK (536)
Tandem: OKCYOKCE13T
🔧 Explore Switch(CLLI: OKCYOKUNDS0))
405-558-8XXXOKSOUTHWESTERN BELLN/A9533OKLA CITYOKCYOKUNDS0N/APrefix Type: RBOC
Switch Name: University
Switch Type: N/A
LATA: Oklahoma City OK (536)
Tandem: OKCYOKCE13T
🔧 Explore Switch(CLLI: OKCYOKUNDS0))
405-558-9XXXOKSOUTHWESTERN BELLN/A9533OKLA CITYOKCYOKUNDS0N/APrefix Type: RBOC
Switch Name: University
Switch Type: N/A
LATA: Oklahoma City OK (536)
Tandem: OKCYOKCE13T
🔧 Explore Switch(CLLI: OKCYOKUNDS0))
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
L'exactitude de ces renseignements n'est pas garantie. L'utilisateur assume l'entière responsabilité des pertes ou des gains découlant de l'utilisation de ces données.
Bien que je m'efforce d'assurer l'exactitude des informations et de les mettre à jour rapidement, des erreurs peuvent subsister. Si vous en voyez une, veuillez me la signaler.
Veuillez adresser vos commentaires, remarques, questions, suggestions et remerciements à Paul Timmins
Please see the Frequently Asked Questions page if you have any questions.
Copyright ©2001-2026, 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.