NumberResearchRecent prefix assignments
352 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 212-579 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-580 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-581 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-582 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-583 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-584 | PAETEC ITEL, LLC | 829J | NWYRCYZN01 | NY | |
| 212-585 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-586 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-587 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-588 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-589 | TC SYSTEMS, INC. - NY | 7140 | NWYRCYZN01 | NY | |
| 212-590 | TC SYSTEMS, INC. - NY | 7140 | NWYRCYZN01 | NY | |
| 212-591 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-592 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-593 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-594 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-595 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-596 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-597 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-598 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-599 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-600 | RCN TELECOM SERVICES, INC. - NY | 7353 | NWYRCYZN01 | NY | |
| 212-601 | TC SYSTEMS, INC. - NY | 7140 | NWYRCYZN01 | NY | |
| 212-602 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-603 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-604 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-605 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-606 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-607 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-608 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-609 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-610 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-611 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | NY | |
| 212-612 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-613 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-614 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-615 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-616 | PAETEC ITEL, LLC | 829J | NWYRCYZN01 | NY | |
| 212-617 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY | |
| 212-618 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-619 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-620 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-621 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-622 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-623 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-624 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY | |
| 212-625 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-626 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-627 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY | |
| 212-628 | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.