All assignees
800 prefixes in 617 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 617-300 | CAMBRIDGE | 7135 | — | Yes |
| 617-301 | CAMBRIDGE | 4036 | 2004-07-13 | Yes |
| 617-302 | QUINCY | 316E | — | Yes |
| 617-303 | BOSTON | 8468 | — | — |
| 617-304 | BOSTON | 5562 | 2002-05-08 | Yes |
| 617-305 | BOSTON | 9102 | — | — |
| 617-306 | BOSTON | 4036 | — | — |
| 617-307 | SO BOSTON | 829J | — | Yes |
| 617-308 | CAMBRIDGE | 6889 | — | Yes |
| 617-309 | BOSTON | 829J | 2004-11-19 | Yes |
| 617-310 | BOSTON | 9102 | — | — |
| 617-311 | XXXXXXXXXX | MULT | — | — |
| 617-312 | BOSTON | 6387 | — | — |
| 617-313 | MILTON | 829J | — | Yes |
| 617-314 | BOSTON | 4018 | — | Yes |
| 617-315 | SO BOSTON | 7229 | — | Yes |
| 617-316 | BOSTON | 7135 | — | — |
| 617-317 | QUINCY | 6083 | — | — |
| 617-318 | ROXBURY | 829J | — | Yes |
| 617-319 | BRIGHTON | 6889 | — | — |
| 617-320 | BOSTON | 4036 | — | — |
| 617-321 | WATERTOWN | 829J | — | Yes |
| 617-322 | MILTON | 318J | — | Yes |
| 617-323 | JAMAICA PL | 9102 | — | — |
| 617-324 | CAMBRIDGE | 9102 | 2002-08-08 | Yes |
| 617-325 | JAMAICA PL | 9102 | — | — |
| 617-326 | DORCHESTER | 7229 | — | Yes |
| 617-327 | JAMAICA PL | 9102 | — | — |
| 617-328 | QUINCY | 9102 | — | — |
| 617-329 | WINTHROP | 7619 | — | Yes |
| 617-330 | BOSTON | 9102 | — | — |
| 617-331 | BOSTON | 6889 | — | — |
| 617-332 | NEWTON | 9102 | — | — |
| 617-333 | HYDE PARK | 9102 | — | Yes |
| 617-334 | SO BOSTON | 7619 | — | Yes |
| 617-335 | CAMBRIDGE | 4036 | — | — |
| 617-336 | CHELSEA | 829J | — | Yes |
| 617-337 | CHARLESTN | 7619 | — | Yes |
| 617-338 | BOSTON | 9102 | — | — |
| 617-339 | CAMBRIDGE | 9102 | — | — |
| 617-340 | NEWTON | 829J | 2001-10-11 | Yes |
| 617-341 | BOSTON | 9102 | — | Yes |
| 617-342 | BOSTON | 9102 | — | — |
| 617-343 | BOSTON | 9102 | — | — |
| 617-344 | JAMAICA PL | 7229 | — | Yes |
| 617-345 | BOSTON | 9102 | — | Yes |
| 617-346 | BOSTON | 9102 | — | — |
| 617-347 | QUINCY | 4036 | — | — |
| 617-348 | BOSTON | 9102 | — | — |
| 617-349 | CAMBRIDGE | 9102 | — | — |
| 617-350 | BOSTON | 9102 | — | — |
| 617-351 | BOSTON | 9102 | — | Yes |
| 617-352 | BOSTON | 9102 | — | Yes |
| 617-353 | BOSTON | 9102 | — | — |
| 617-354 | CAMBRIDGE | 9102 | — | — |
| 617-355 | BROOKLINE | 9102 | — | Yes |
| 617-356 | BOSTON | 6387 | — | Yes |
| 617-357 | BOSTON | 9102 | — | — |
| 617-358 | BOSTON | 9102 | — | — |
| 617-359 | CAMBRIDGE | 6889 | — | Yes |
| 617-360 | HYDE PARK | 9102 | — | Yes |
| 617-361 | HYDE PARK | 9102 | — | — |
| 617-362 | HYDE PARK | 990E | — | Yes |
| 617-363 | JAMAICA PL | 9102 | — | Yes |
| 617-364 | HYDE PARK | 9102 | — | — |
| 617-365 | DEDHAM | 4036 | — | — |
| 617-366 | BOSTON | 9102 | 2004-05-06 | Yes |
| 617-367 | BOSTON | 9102 | — | — |
| 617-368 | BOSTON | 9102 | — | Yes |
| 617-369 | BOSTON | 9102 | — | Yes |
| 617-370 | CHELSEA | 7229 | — | Yes |
| 617-371 | BOSTON | 9102 | — | Yes |
| 617-372 | BOSTON | 9102 | — | Yes |
| 617-373 | BOSTON | 9102 | — | Yes |
| 617-374 | CAMBRIDGE | 9102 | — | — |
| 617-375 | BOSTON | 9102 | — | Yes |
| 617-376 | QUINCY | 9102 | — | Yes |
| 617-377 | BOSTON | 9102 | — | Yes |
| 617-378 | BOSTON | 7135 | — | Yes |
| 617-379 | DORCHESTER | 7619 | — | Yes |
| 617-380 | CHARLESTN | 4018 | — | Yes |
| 617-381 | EVERETT | 9102 | — | Yes |
| 617-382 | EVERETT | 9102 | — | — |
| 617-383 | BROOKLINE | 829J | — | Yes |
| 617-384 | CAMBRIDGE | 9102 | — | — |
| 617-385 | BOSTON | 7135 | — | — |
| 617-386 | CAMBRIDGE | 7135 | 2001-12-15 | Yes |
| 617-387 | EVERETT | 9102 | — | — |
| 617-388 | CAMBRIDGE | 6889 | — | Yes |
| 617-389 | EVERETT | 9102 | — | — |
| 617-390 | JAMAICA PL | 7229 | — | Yes |
| 617-391 | BOSTON | 829J | 2008-04-30 | Yes |
| 617-392 | BOSTON | 7135 | — | — |
| 617-393 | WATERTOWN | 7619 | — | Yes |
| 617-394 | EVERETT | 9102 | — | Yes |
| 617-395 | CAMBRIDGE | 4018 | — | Yes |
| 617-396 | BROOKLINE | 7135 | — | Yes |
| 617-397 | CAMBRIDGE | 7135 | — | Yes |
| 617-398 | CHARLESTN | 990E | — | Yes |
| 617-399 | BOSTON | 7229 | — | — |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.