Block unknown numbers quickly to keep your phone quiet. Repeated rings from the PLC NPAC ID are classic robocall campaigns that bypass most Do‑Not‑Call filters by posing as political or charitable groups. Use your carrier’s spam‑blocking tools, register with the national registry, and create a personal blacklist for the offending caller ID. If a call ever leaves a voice‑mail with a suspicious callback, treat it as a scam and avoid calling back. Consider reporting the number to the FTC and to third‑party databases like 800notes, which help flag persistent offenders for other users.
A call with no message was received from 'PLC NPAC', which now necessitates blocking this number.
Further research on the caller ID information revealed a potential connection to PLC NPAC, which may be related to other suspicious numbers
No message was left by the caller, who was identified as PLC NPAC, a name that is unfamiliar to me