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Phone numbers, along with owner names and location information, found in U.S. open datasets:
Prefix 831-307 is operated by LEVEL 3 COMMUNICATIONS, LLC - CA. Its rate center is CASTROVL.
| Company | LEVEL 3 COMMUNICATIONS, LLC - CA |
| Rate Center | CASTROVL |
Other prefixes with the same CASTROVL rate center and operated by LEVEL 3 COMMUNICATIONS, LLC - CA: