NumberResearchRecent prefix assignments
380 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 |
|---|---|---|---|---|---|
| 787-656 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | HUMACAO | PR | |
| 787-657 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | RIO GRANDE | PR | |
| 787-658 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | AGUADILLA | PR | |
| 787-659 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | SAN GERMAN | PR | |
| 787-660 | PUERTO RICO TEL. CO. | 3201 | XXXXXXXXXX | PR | |
| 787-664 | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR | |
| 787-670 | PUERTO RICO TEL. CO. | 3201 | XXXXXXXXXX | PR | |
| 787-672 | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR | |
| 787-681 | PUERTO RICO TEL. CO. | 3201 | XXXXXXXXXX | PR | |
| 787-682 | PUERTO RICO TEL. CO. | 3201 | XXXXXXXXXX | PR | |
| 787-683 | PUERTO RICO TEL. CO. | 3201 | XXXXXXXXXX | PR | |
| 787-684 | PUERTO RICO TEL. CO. | 3201 | XXXXXXXXXX | PR | |
| 787-685 | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR | |
| 787-686 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | GUAYAMA | PR | |
| 787-687 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | GURABO | PR | |
| 787-688 | SUNCOM DBA T-MOBILE USA | 8645 | SANTURCE | PR | |
| 787-689 | LIBERTY MOBILE PUERTO RICO INC. | 639J | LEVITTOWN | PR | |
| 787-690 | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAROLINA | PR | |
| 787-691 | LIBERTY MOBILE PUERTO RICO INC. | 639J | RIOPIEDRAS | PR | |
| 787-692 | LIBERTY MOBILE PUERTO RICO INC. | 639J | PUEBLOVIEJ | PR | |
| 787-693 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | COROZAL | PR | |
| 787-695 | LIBERTY MOBILE PUERTO RICO INC. | 8305 | COMERIO | PR | |
| 787-696 | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCE | PR | |
| 787-697 | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCE | PR | |
| 787-698 | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCE | PR | |
| 787-700 | PR | ||||
| 787-701 | PUERTO RICO TEL. CO. | 3201 | CAROLINA | PR | |
| 787-703 | PUERTO RICO TEL. CO. | 3201 | CAGUAS | PR | |
| 787-704 | PUERTO RICO TEL. CO. | 3201 | CAGUAS | PR | |
| 787-706 | PUERTO RICO TEL. CO. | 3201 | PUEBLOVIEJ | PR | |
| 787-707 | PUERTO RICO TEL. CO. | 3201 | PUEBLOVIEJ | PR | |
| 787-708 | PUERTO RICO TEL. CO. | 3201 | GUAYNABO | PR | |
| 787-711 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | PR | |
| 787-712 | PUERTO RICO TEL. CO. | 3201 | GURABO | PR | |
| 787-713 | PUERTO RICO TEL. CO. | 3201 | JUNCOS | PR | |
| 787-714 | PUERTO RICO TEL. CO. | 3201 | CIDRA | PR | |
| 787-715 | PUERTO RICO TEL. CO. | 3201 | SANLORENZO | PR | |
| 787-716 | PUERTO RICO TEL. CO. | 3201 | LASPIEDRAS | PR | |
| 787-717 | LIBERTY MOBILE PUERTO RICO INC. | 639J | SANTURCE | PR | |
| 787-718 | LIBERTY MOBILE PUERTO RICO INC. | 639J | CAGUAS | PR | |
| 787-720 | PUERTO RICO TEL. CO. | 3201 | GUAYNABO | PR | |
| 787-721 | PUERTO RICO TEL. CO. | 3201 | SANTURCE | PR | |
| 787-722 | PUERTO RICO TEL. CO. | 3201 | SANTURCE | PR | |
| 787-723 | PUERTO RICO TEL. CO. | 3201 | SANTURCE | PR | |
| 787-724 | PUERTO RICO TEL. CO. | 3201 | SANTURCE | PR | |
| 787-725 | PUERTO RICO TEL. CO. | 3201 | SANTURCE | PR | |
| 787-726 | PUERTO RICO TEL. CO. | 3201 | SANTURCEES | PR | |
| 787-727 | PUERTO RICO TEL. CO. | 3201 | SANTURCEES | PR | |
| 787-728 | PUERTO RICO TEL. CO. | 3201 | SANTURCEES | PR | |
| 787-729 | PUERTO RICO TEL. CO. | 3201 | SANTURCE | PR |
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.