[outages] Sudden influx of calls from 415 area code

We just saw a sudden influx of calls (hundreds to a wide range of DIDs) from 415 area codes to our sip trunks and a few unrelated cell phones within the last 15-20 minutes. Any idea what's going on? Will McCloskey This e-mail and any files transmitted with it are confidential, may contain sensitive information, and are intended solely for the use of the individual or entity to whom they are addressed. If you have received this e-mail in error, please notify the sender by reply e-mail immediately and destroy all copies of the e-mail and any attachments.