NumberResearchRecent prefix assignments
355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
Which carriers received which NPA-NXX prefixes, and where. A single prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are often split across different carriers — use the blocks link on any row (or the thousands-block view above) to see which carrier holds which block. Assignments are initial assignments; the current serving carrier may differ due to portability.
Most active assignees, last 30 days
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| — | 917-677 blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY |
| — | 917-678 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY |
| — | 917-679 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY |
| — | 917-680 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY |
| — | 917-681 pooled blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| — | 917-682 pooled blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| — | 917-683 pooled blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN08 | NY |
| — | 917-684 pooled blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY |
| — | 917-685 blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN06 | NY |
| — | 917-686 pooled blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| — | 917-687 pooled blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| — | 917-689 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY |
| — | 917-690 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY |
| — | 917-691 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY |
| — | 917-692 blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
| — | 917-693 blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
| — | 917-696 blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
| — | 917-697 blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
| — | 917-699 blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
| — | 917-700 blocks → | NY | |||
| — | 917-701 pooled blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| — | 917-704 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY |
| — | 917-705 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY |
| — | 917-706 blocks → | SPOK, INC. | 6630 | NWYRCYZN01 | NY |
| — | 917-707 blocks → | SPOK, INC. | 6630 | NWYRCYZN08 | NY |
| — | 917-709 pooled blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| — | 917-710 blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
| — | 917-711 blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | NY |
| — | 917-712 blocks → | SPOK, INC. | 6630 | NWYRCYZN01 | NY |
| — | 917-713 blocks → | SPOK, INC. | 6630 | NWYRCYZN01 | NY |
| — | 917-714 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY |
| — | 917-715 blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
| — | 917-716 blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
| — | 917-719 pooled blocks → | BANDWIDTH.COM CLEC, LLC - NY | 997E | NWYRCYZN10 | NY |
| — | 917-720 pooled blocks → | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| — | 917-721 pooled blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| — | 917-723 pooled blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| — | 917-726 blocks → | VERIZON NEW YORK, INC. | 9104 | NWYRCYZN01 | NY |
| — | 917-728 pooled blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| — | 917-729 blocks → | SPOK, INC. | 6630 | NWYRCYZN01 | NY |
| — | 917-731 pooled blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| — | 917-733 blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
| — | 917-734 blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
| — | 917-738 blocks → | SPOK, INC. | 6630 | NWYRCYZN01 | NY |
| — | 917-739 blocks → | SPOK, INC. | 6630 | NWYRCYZN01 | NY |
| — | 917-741 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY |
| — | 917-742 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN10 | NY |
| — | 917-743 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY |
| — | 917-744 blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NWYRCYZN01 | NY |
| — | 917-747 blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.