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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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
301-892MDVERIZON MARYLAND, INC. (Verizon Communications)9212WSHNGTNZN4HYVLMDHYPS003/11/2005Prefix Type: RBOC
Switch Name: WASZ 4
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
Thousands block for 301-892
301-892-9MDVERIZON MARYLAND, INC. (Verizon Communications)9212WSHNGTNZN4HYVLMDHYPS003/15/2005Prefix Type: RBOC
Switch Name: WASZ 4
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info