Input a CLLI:

Tip: A Partial CLLI can be entered, but must contain a minimum of the first 6 characters. I.E. 'DLLSTX'

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

npa-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
617-539MAVERIZON NEW ENGLAND INC. (Verizon Communications Inc.)0003628971RMD00029539102WINTHROPWNTHMAMARP000/00/0000Prefix Type: RBOC
Switch Name: WINTHROP
Switch Type: N/A
LATA: eastern MA (128)
Tandem: N/A
🔧 Explore Switch(CLLI: WNTHMAMARP0))
🕘 Prefix History
🔎 Explore Carrier Information
617-539 is split into 1,000-number blocks - detail below
617-539-0XXXMAVERIZON NEW ENGLAND INC. (Verizon Communications Inc.)0003628971RMD00029539102WINTHROPWNTHMAMARP0N/APrefix Type: RBOC
Switch Name: WINTHROP
Switch Type: N/A
LATA: eastern MA (128)
Tandem: N/A
🔧 Explore Switch(CLLI: WNTHMAMARP0))
🕘 Prefix History
🔎 Explore Carrier Information
617-539-1XXXMAVERIZON NEW ENGLAND INC. (Verizon Communications Inc.)0003628971RMD00029539102WINTHROPWNTHMAMARP0N/APrefix Type: RBOC
Switch Name: WINTHROP
Switch Type: N/A
LATA: eastern MA (128)
Tandem: N/A
🔧 Explore Switch(CLLI: WNTHMAMARP0))
🕘 Prefix History
🔎 Explore Carrier Information
617-539-3XXXMAVERIZON NEW ENGLAND INC. (Verizon Communications Inc.)0003628971RMD00029539102WINTHROPWNTHMAMARP0N/APrefix Type: RBOC
Switch Name: WINTHROP
Switch Type: N/A
LATA: eastern MA (128)
Tandem: N/A
🔧 Explore Switch(CLLI: WNTHMAMARP0))
🕘 Prefix History
🔎 Explore Carrier Information
617-539-9XXXMAVERIZON NEW ENGLAND INC. (Verizon Communications Inc.)0003628971RMD00029539102WINTHROPWNTHMAMARP0N/APrefix Type: RBOC
Switch Name: WINTHROP
Switch Type: N/A
LATA: eastern MA (128)
Tandem: N/A
🔧 Explore Switch(CLLI: WNTHMAMARP0))
🕘 Prefix History
🔎 Explore Carrier Information
617-846MAVERIZON NEW ENGLAND INC. (Verizon Communications Inc.)0003628971RMD00029539102WINTHROPWNTHMAMARP000/00/0000Prefix Type: RBOC
Switch Name: WINTHROP
Switch Type: N/A
LATA: eastern MA (128)
Tandem: N/A
🔧 Explore Switch(CLLI: WNTHMAMARP0))
🕘 Prefix History
🔎 Explore Carrier Information
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