| Area Code | Prefix | Zip Count | ZIP Freq | Type | Company | Rate Center | 
| 617 | 217 | 31799 | -1 | LANDLINE | TC SYSTEMS, INC. | BOSTON | 
| 617 | 268 | 31799 | 0 | LANDLINE | VERIZON NEW ENGLAND INC. | SO BOSTON | 
| 617 | 269 | 31799 | 0 | LANDLINE | VERIZON NEW ENGLAND INC. | SO BOSTON | 
| 617 | 307 | 31799 | 0 | LANDLINE | PAETEC ITEL, LLC | SO BOSTON | 
| 617 | 315 | 31799 | 0 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC- MA | SO BOSTON | 
| 617 | 334 | 31799 | 0 | LANDLINE | RCN TELECOM SERVICES, INC. - MA | SO BOSTON | 
| 617 | 399 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | BOSTON | 
| 617 | 463 | 31799 | 0 | LANDLINE | VERIZON NEW ENGLAND INC. | SO BOSTON | 
| 617 | 464 | 31799 | 0 | LANDLINE | VERIZON NEW ENGLAND INC. | SO BOSTON | 
| 617 | 595 | 31799 | 0 | LANDLINE | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | BOSTON | 
| 617 | 597 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | NEWTON | 
| 617 | 622 | 31799 | 0 | LANDLINE | LEVEL 3 COMMUNICATIONS, LLC - MA | SO BOSTON | 
| 617 | 668 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | WATERTOWN | 
| 617 | 701 | 31799 | 0 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | SO BOSTON | 
| 617 | 752 | 31799 | 0 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | SO BOSTON | 
| 617 | 765 | 31799 | 0 | LANDLINE | LEVEL 3 COMMUNICATIONS, LLC - MA | SO BOSTON | 
| 617 | 766 | 31799 | 0 | LANDLINE | TC SYSTEMS, INC. | SO BOSTON | 
| 774 | 893 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | DOVER | 
| 781 | 268 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | LYNN | 
| 781 | 288 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | MALDEN | 
| 781 | 295 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | WAKEFIELD | 
| 781 | 302 | 31799 | -1 | LANDLINE | TC SYSTEMS, INC. | CANTON | 
| 781 | 303 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | BRAINTREE | 
| 781 | 357 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | LEXINGTON | 
| 781 | 371 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | WELLESLEY | 
| 781 | 429 | 31799 | -1 | LANDLINE | TC SYSTEMS, INC. | NEEDHAM | 
| 781 | 478 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | WALTHAM | 
| 781 | 494 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | BURLINGTON | 
| 781 | 498 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | MEDFORD | 
| 781 | 503 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | WOBURN | 
| 781 | 512 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | LINCOLN | 
| 781 | 574 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | ARLINGTON | 
| 781 | 636 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | DEDHAM | 
| 781 | 712 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | MELROSE | 
| 781 | 817 | 31799 | -1 | LANDLINE | TC SYSTEMS, INC. | BRAINTREE | 
| 781 | 949 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | NORWOOD | 
| 781 | 972 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | NEEDHAM | 
| 781 | 984 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | STONEHAM | 
| 857 | 257 | 31799 | 0 | WIRELESS | METROPCS, INC. | SO BOSTON | 
| 857 | 401 | 31799 | 0 | LANDLINE | PAETEC ITEL, LLC | SO BOSTON | 
| 857 | 496 | 31799 | 0 | LANDLINE | COMCAST IP PHONE, LLC | SO BOSTON | 
| 857 | 524 | 31799 | 0 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | SO BOSTON | 
| 857 | 559 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | BRIGHTON | 
| 857 | 766 | 31799 | 0 | LANDLINE | FRACTEL, LLC | SO BOSTON | 
| 978 | 832 | 31799 | -1 | LANDLINE | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | SALEM |