All assignees
800 prefixes in 617 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 617-200 | XXXXXXXXXX | 9102 | — | — |
| 617-201 | CAMBRIDGE | 6889 | 2001-02-14 | Yes |
| 617-202 | BRIGHTON | 829J | — | Yes |
| 617-203 | EVERETT | 7229 | — | Yes |
| 617-204 | BOSTON | 9102 | — | — |
| 617-205 | BOSTON | 6083 | — | — |
| 617-206 | BRIGHTON | 7229 | — | Yes |
| 617-207 | WINTHROP | 318J | — | Yes |
| 617-208 | BRIGHTON | 7229 | — | Yes |
| 617-209 | BELMONT | 7619 | — | Yes |
| 617-210 | BOSTON | 9102 | — | Yes |
| 617-211 | XXXXXXXXXX | MULT | — | — |
| 617-212 | BOSTON | 6889 | — | Yes |
| 617-213 | NEWTON | 4018 | — | Yes |
| 617-214 | JAMAICA PL | 892D | 2023-07-18 | Yes |
| 617-215 | NEWTON | 9102 | — | — |
| 617-216 | CAMBRIDGE | 6889 | — | Yes |
| 617-217 | BOSTON | 7135 | — | Yes |
| 617-218 | CAMBRIDGE | 7135 | — | Yes |
| 617-219 | NEWTON | 9102 | — | Yes |
| 617-220 | XXXXXXXXXX | 9102 | — | — |
| 617-221 | QUINCY | 829J | — | Yes |
| 617-222 | BOSTON | 9102 | — | Yes |
| 617-223 | BOSTON | 9102 | — | Yes |
| 617-224 | BOSTON | 7229 | 2001-11-14 | Yes |
| 617-225 | CAMBRIDGE | 9102 | — | — |
| 617-226 | BOSTON | 829J | — | Yes |
| 617-227 | BOSTON | 9102 | — | — |
| 617-228 | BOSTON | 9102 | — | — |
| 617-229 | CAMBRIDGE | 7229 | — | Yes |
| 617-230 | CAMBRIDGE | 6889 | — | — |
| 617-231 | WATERTOWN | 4018 | — | Yes |
| 617-232 | BROOKLINE | 9102 | — | — |
| 617-233 | CAMBRIDGE | 6889 | — | Yes |
| 617-234 | CAMBRIDGE | 9102 | — | — |
| 617-235 | BOSTON | 9102 | — | — |
| 617-236 | BOSTON | 9102 | — | — |
| 617-237 | QUINCY | 7619 | — | Yes |
| 617-238 | ROXBURY | 7229 | — | Yes |
| 617-239 | BOSTON | 7135 | — | Yes |
| 617-240 | SAUGUS | 4036 | — | — |
| 617-241 | CHARLESTN | 9102 | — | — |
| 617-242 | CHARLESTN | 9102 | — | — |
| 617-243 | NEWTON | 9102 | — | — |
| 617-244 | NEWTON | 9102 | — | — |
| 617-245 | CAMBRIDGE | 4018 | — | Yes |
| 617-246 | BOSTON | 9102 | — | — |
| 617-247 | BOSTON | 9102 | — | — |
| 617-248 | BOSTON | 9102 | — | — |
| 617-249 | QUINCY | 7229 | — | Yes |
| 617-250 | CAMBRIDGE | 7135 | — | Yes |
| 617-251 | CAMBRIDGE | 6889 | 2001-02-14 | Yes |
| 617-252 | CAMBRIDGE | 9102 | — | Yes |
| 617-253 | CAMBRIDGE | 9102 | — | — |
| 617-254 | BRIGHTON | 9102 | — | — |
| 617-255 | BOSTON | 9102 | — | — |
| 617-256 | CAMBRIDGE | 6889 | — | Yes |
| 617-257 | SAUGUS | 4036 | — | — |
| 617-258 | CAMBRIDGE | 9102 | — | — |
| 617-259 | BOSTON | 6889 | 2004-01-07 | Yes |
| 617-260 | XXXXXXXXXX | 9102 | — | — |
| 617-261 | BOSTON | 9102 | — | — |
| 617-262 | BOSTON | 9102 | — | — |
| 617-263 | BOSTON | 9102 | — | Yes |
| 617-264 | BROOKLINE | 9102 | — | Yes |
| 617-265 | DORCHESTER | 9102 | — | — |
| 617-266 | BOSTON | 9102 | — | — |
| 617-267 | BOSTON | 9102 | — | — |
| 617-268 | SO BOSTON | 9102 | — | — |
| 617-269 | SO BOSTON | 9102 | — | — |
| 617-270 | CHELSEA | 5562 | 2001-02-14 | Yes |
| 617-271 | EASTBOSTON | 5562 | 2001-02-14 | Yes |
| 617-272 | HYDE PARK | 892D | — | Yes |
| 617-273 | MILTON | 4018 | — | Yes |
| 617-274 | BROOKLINE | 829J | — | Yes |
| 617-275 | BOSTON | 4018 | 2001-12-15 | Yes |
| 617-276 | HYDE PARK | 7619 | — | Yes |
| 617-277 | BROOKLINE | 9102 | — | — |
| 617-278 | BROOKLINE | 9102 | — | — |
| 617-279 | BOSTON | 7229 | — | Yes |
| 617-280 | CAMBRIDGE | 174A | 2003-09-29 | — |
| 617-281 | WALTHAM | 4036 | — | — |
| 617-282 | DORCHESTER | 9102 | — | — |
| 617-283 | BOSTON | 4036 | — | — |
| 617-284 | SOMERVILLE | 9102 | — | Yes |
| 617-285 | SAUGUS | 6387 | — | — |
| 617-286 | CHARLESTN | 829J | 2001-02-16 | Yes |
| 617-287 | DORCHESTER | 9102 | — | — |
| 617-288 | DORCHESTER | 9102 | — | — |
| 617-289 | BOSTON | 9102 | — | — |
| 617-290 | CAMBRIDGE | 6889 | — | Yes |
| 617-291 | MILTON | 4036 | — | — |
| 617-292 | BOSTON | 9102 | — | — |
| 617-293 | BOSTON | 5562 | — | Yes |
| 617-294 | EVERETT | 318J | — | Yes |
| 617-295 | BOSTON | 9102 | — | Yes |
| 617-296 | MILTON | 9102 | — | — |
| 617-297 | DORCHESTER | 4018 | — | Yes |
| 617-298 | MILTON | 9102 | — | Yes |
| 617-299 | CAMBRIDGE | 7229 | — | Yes |
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.