Called, but didn't leave a message.

As mentioned by MichiGal, this is a spoofed number by energycitizens.org.   Since the group is fraudulently using the name World Bank, I called the number listed on the WB website which was supposed to be the WB Fraud Line  (800) 831-0463.   I was eventually connected to a man with a heavy foreign accent who said he didn't work for WB and didn't know how I gotchis Compliance Dept phone number.  After about 5 minutes of listening to his drivel, I hung up.
My suggestion is to file a complaint with the FCC.   You might also try sending an e-mail to [email protected]
Realistically, both organizations are large enough that they won't really care about consumer complaints.   The best thing to do is block the number.