NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 787
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-10-02 | 787-476-2XXX | 2000–2999 | Assigned | NEUTRAL TANDEM - PR | 559F | SAN GERMAN | PR |
| 2025-10-02 | 787-965-2XXX | 2000–2999 | Assigned | NEUTRAL TANDEM - PR | 559F | VEGA BAJA | PR |
| 2022-09-06 | 787-422-1XXX | 1000–1999 | Assigned | NEUTRAL TANDEM - PR | 559F | GUAYNABO | PR |
| 2022-09-06 | 787-422-3XXX | 3000–3999 | Assigned | NEUTRAL TANDEM - PR | 559F | GUAYNABO | PR |
| 2022-09-06 | 787-663-8XXX | 8000–8999 | Assigned | NEUTRAL TANDEM - PR | 559F | CIALES | PR |
| 2022-09-06 | 787-663-9XXX | 9000–9999 | Assigned | NEUTRAL TANDEM - PR | 559F | CIALES | PR |
| 2022-07-05 | 787-421-7XXX | 7000–7999 | Assigned | NEUTRAL TANDEM - PR | 559F | GUAYNABO | PR |
| 2022-07-05 | 787-437-6XXX | 6000–6999 | Assigned | NEUTRAL TANDEM - PR | 559F | JAYUYA | PR |
| 2022-07-05 | 787-476-9XXX | 9000–9999 | Assigned | NEUTRAL TANDEM - PR | 559F | SAN GERMAN | PR |
| 2022-07-05 | 787-482-3XXX | 3000–3999 | Assigned | NEUTRAL TANDEM - PR | 559F | SALINAS | PR |
| 2022-07-05 | 787-558-1XXX | 1000–1999 | Assigned | NEUTRAL TANDEM - PR | 559F | SAN ISABEL | PR |
| 2022-07-05 | 787-592-6XXX | 6000–6999 | Assigned | NEUTRAL TANDEM - PR | 559F | GUAYAMA | PR |
| 2022-03-02 | 787-965-3XXX | 3000–3999 | Assigned | NEUTRAL TANDEM - PR | 559F | VEGA BAJA | PR |
| 2022-03-02 | 787-965-4XXX | 4000–4999 | Assigned | NEUTRAL TANDEM - PR | 559F | VEGA BAJA | PR |
| 2021-10-18 | 787-437-5XXX | 5000–5999 | Assigned | NEUTRAL TANDEM - PR | 559F | JAYUYA | PR |
| 2021-08-06 | 787-476-3XXX | 3000–3999 | Assigned | NEUTRAL TANDEM - PR | 559F | SAN GERMAN | PR |
| 2021-08-06 | 787-476-4XXX | 4000–4999 | Assigned | NEUTRAL TANDEM - PR | 559F | SAN GERMAN | PR |
| 2021-08-06 | 787-794-7XXX | 7000–7999 | Assigned | NEUTRAL TANDEM - PR | 559F | TOA BAJA | PR |
| 2021-07-06 | 787-592-3XXX | 3000–3999 | Assigned | NEUTRAL TANDEM - PR | 559F | GUAYAMA | PR |
| 2021-07-06 | 787-592-4XXX | 4000–4999 | Assigned | NEUTRAL TANDEM - PR | 559F | GUAYAMA | PR |
| 2021-07-06 | 787-665-9XXX | 9000–9999 | Assigned | NEUTRAL TANDEM - PR | 559F | DORADO | PR |
| 2021-07-06 | 787-699-2XXX | 2000–2999 | Assigned | NEUTRAL TANDEM - PR | 559F | BARRANQUTS | PR |
| 2021-07-06 | 787-699-3XXX | 3000–3999 | Assigned | NEUTRAL TANDEM - PR | 559F | BARRANQUTS | PR |
| 2021-07-06 | 787-714-9XXX | 9000–9999 | Assigned | NEUTRAL TANDEM - PR | 559F | CIDRA | PR |
| 2021-05-10 | 787-293-9XXX | 9000–9999 | Assigned | NEUTRAL TANDEM - PR | 559F | TRUJILLOAL | PR |
| 2021-05-10 | 787-468-6XXX | 6000–6999 | Assigned | NEUTRAL TANDEM - PR | 559F | FAJARDO | PR |
| 2021-05-10 | 787-592-2XXX | 2000–2999 | Assigned | NEUTRAL TANDEM - PR | 559F | GUAYAMA | PR |
| 2021-05-10 | 787-689-9XXX | 9000–9999 | Assigned | NEUTRAL TANDEM - PR | 559F | LEVITTOWN | PR |
| 2021-05-10 | 787-694-4XXX | 4000–4999 | Assigned | NEUTRAL TANDEM - PR | 559F | CAYEY | PR |
| 2021-05-10 | 787-808-6XXX | 6000–6999 | Assigned | NEUTRAL TANDEM - PR | 559F | LAJAS | PR |
| 2021-05-10 | 787-861-8XXX | 8000–8999 | Assigned | NEUTRAL TANDEM - PR | 559F | MAUNABO | PR |
| 2021-05-10 | 787-921-3XXX | 3000–3999 | Assigned | NEUTRAL TANDEM - PR | 559F | MANATI | PR |
| 2021-05-10 | 787-945-6XXX | 6000–6999 | Assigned | NEUTRAL TANDEM - PR | 559F | SANTURCEES | PR |
| 2021-05-10 | 787-970-9XXX | 9000–9999 | Assigned | NEUTRAL TANDEM - PR | 559F | BARCELONTA | PR |
| 2021-05-10 | 787-986-4XXX | 4000–4999 | Assigned | NEUTRAL TANDEM - PR | 559F | MAYAGUEZ | PR |
| 2020-12-15 | 787-230-8XXX | 8000–8999 | Assigned | NEUTRAL TANDEM - PR | 559F | TOA BAJA | PR |
| 2020-12-15 | 787-965-6XXX | 6000–6999 | Assigned | NEUTRAL TANDEM - PR | 559F | VEGA BAJA | PR |
| 2020-12-11 | 787-434-3XXX | 3000–3999 | Assigned | NEUTRAL TANDEM - PR | 559F | CIDRA | PR |
| 2020-12-11 | 787-482-8XXX | 8000–8999 | Assigned | NEUTRAL TANDEM - PR | 559F | SALINAS | PR |
| 2020-12-11 | 787-507-5XXX | 5000–5999 | Assigned | NEUTRAL TANDEM - PR | 559F | GUAYNABO | PR |
| 2020-12-11 | 787-558-5XXX | 5000–5999 | Assigned | NEUTRAL TANDEM - PR | 559F | SAN ISABEL | PR |
| 2020-12-11 | 787-853-7XXX | 7000–7999 | Assigned | NEUTRAL TANDEM - PR | 559F | AGUIRRE | PR |
| 2020-12-11 | 787-913-8XXX | 8000–8999 | Assigned | NEUTRAL TANDEM - PR | 559F | JUANA DIAZ | PR |
| 2020-12-11 | 787-952-3XXX | 3000–3999 | Assigned | NEUTRAL TANDEM - PR | 559F | CULEBRA | PR |
| 2020-12-11 | 787-968-6XXX | 6000–6999 | Assigned | NEUTRAL TANDEM - PR | 559F | VIEQUES | PR |
| 2020-12-11 | 787-973-3XXX | 3000–3999 | Assigned | NEUTRAL TANDEM - PR | 559F | GUAYANILLA | PR |
| 2020-12-11 | 787-985-8XXX | 8000–8999 | Assigned | NEUTRAL TANDEM - PR | 559F | ISLA VERDE | PR |
| 2020-12-11 | 787-991-9XXX | 9000–9999 | Assigned | NEUTRAL TANDEM - PR | 559F | AIBONITO | PR |
| 2020-12-10 | 787-437-8XXX | 8000–8999 | Assigned | NEUTRAL TANDEM - PR | 559F | JAYUYA | PR |
| 2020-12-10 | 787-476-5XXX | 5000–5999 | Assigned | NEUTRAL TANDEM - PR | 559F | SAN GERMAN | PR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.