Universal Licensing System
WPWL744
National Oilwell
License details
| ULS identifier | 2468839 |
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| Call sign | WPWL744 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2002-12-17 |
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| Expiration | 2012-12-17 |
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| Cancellation | 2013-02-16 |
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| Frequency range | 461.8 - 464.65 MHz (8 frequencies) |
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| Locations | 1 |
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| Representative location | houston, HARRIS, TX |
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| Coordinates | 29.8358333, -95.3616667 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:15:14 |
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Licensee
| Name | National Oilwell |
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| Applicant type | C |
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| FRN | 0007757636 |
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| Location | Houston, TX |
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| Address | 8411 Irvington Blvd, Houston, TX, 77022 |
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| Phone | 7136917816 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 461.80000000 | | | 4.000000 | 2.000000 | |
| 1 | 1 | MO | 461.82500000 | | | 4.000000 | 2.000000 | |
| 1 | 1 | MO | 461.88750000 | | | 4.000000 | 2.000000 | |
| 1 | 1 | MO | 462.05000000 | | | 4.000000 | 2.000000 | |
| 1 | 1 | MO | 463.27500000 | | | 4.000000 | 2.000000 | |
| 1 | 1 | MO | 463.76250000 | | | 4.000000 | 2.000000 | |
| 1 | 1 | MO | 464.27500000 | | | 4.000000 | 2.000000 | |
| 1 | 1 | MO | 464.65000000 | | | 4.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.80000000 | | 11K0F3E |
| 1 | 1 | 461.82500000 | | 11K0F3E |
| 1 | 1 | 461.88750000 | | 11K0F3E |
| 1 | 1 | 462.05000000 | | 11K0F3E |
| 1 | 1 | 463.27500000 | | 11K0F3E |
| 1 | 1 | 463.76250000 | | 11K0F3E |
| 1 | 1 | 464.27500000 | | 11K0F3E |
| 1 | 1 | 464.65000000 | | 11K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | houston, HARRIS, TX | 29.83583333, -95.36166667 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 8411 Irvington Blvd, Houston, TX | HARRIS | 7236917816 |
License history
| Date | File or call sign | Action |
|---|
| 2013-02-16 | WPWL744 | LIEXP |
| 2012-09-24 | WPWL744 | LETRES |
| 2003-09-15 | WPWL744 | LETCNS |
| 2002-12-17 | WPWL744 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2468839 | 2026-08-02 01:15:14 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPWL744 | ULS 2468839 | 2026-08-02 01:15:14 |
| Status | E | ULS 2468839 | 2026-08-02 01:15:14 |
| Service | IG | ULS 2468839 | 2026-08-02 01:15:14 |
| Grant Date | 2002-12-17 | ULS 2468839 | 2026-08-02 01:15:14 |
| Expiration Date | 2012-12-17 | ULS 2468839 | 2026-08-02 01:15:14 |
| Cancellation Date | 2013-02-16 | ULS 2468839 | 2026-08-02 01:15:14 |