select entry in Code column to view full DE allocations in that range
| Code | DEF | Operator | Use | Notes |
| 1500 | Geographic - unassigned | |||
| 1501 | Harthill | |||
| 1502 | Lowestoft | |||
| 1503 | Looe | |||
| 1504 | Geographic - unassigned (former Londonderry/Limavady (Mixed 4/5 Digit Code Area) | |||
| 1505 | Johnstone | |||
| 1506 | Bathgate | |||
| 1507 | 0&1 | Louth/Alford/Spilsby National Dialling | ELNS | |
| 1507 | 2 | Spilsby | ELNS | |
| 1507 | 3 | Louth | ELNS | |
| 1507 | 4 | Alford (Lincs) | ELNS | |
| 1507 | 5 | Spilsby | ELNS | |
| 1507 | 6&7 | Louth | ELNS | |
| 1507 | 8&9 | Alford (Lincs) | ELNS | |
| 1508 | Brooke | |||
| 1509 | Loughborough | |||
| 1510, 1511 | Liverpool National dialling | |||
| 1512, 1513, 1514, 1515, 1516, 1517, 1518, 1519 | Liverpool | |||
| 1520 | Lochcarron | |||
| 1521 | Geographic - unassigned | |||
| 1522 | Lincoln | |||
| 1523 | Geographic - unassigned (former Paging Services) | |||
| 1524 | 0&1 | Lancaster National Dialling | 4 Digit Code Area | |
| 1524 | 2 | Hornby | 5 Digit Code Area | |
| 1524 | 3-9 | Lancaster | 4 Digit Code Area | |
| 1525 | Leighton Buzzard | |||
| 1526 | Martin | |||
| 1527 | Redditch | |||
| 1528 | Laggan | |||
| 1529 | Sleaford | |||
| 1530 | Coalville | |||
| 1531 | Ledbury | |||
| 1532, 1533 | Geographic - unassigned | |||
| 1534 | Jersey | |||
| 1535 | Keighley | |||
| 1536 | Kettering | |||
| 1537 | Geographic - unassigned | |||
| 1538 | Ipstones | |||
| 1539 | 0&1 | Kendal National Dialling | 4 Digit Code Area | |
| 1539 | 2&3 | Kendal | 4 Digit Code Area | |
| 1539 | 4 | Hawkshead | 5 Digit Code Area | |
| 1539 | 5 | Grange over Sands | 5 Digit Code Area | |
| 1539 | 6 | Sedbergh | 5 Digit Code Area | |
| 1539 | 7-9 | Kendal | 4 Digit Code Area | |
| 1540 | Kingussie | |||
| 1541 | Geographic - unassigned | |||
| 1542 | Keith | |||
| 1543 | Cannock | |||
| 1544 | Kington | |||
| 1545 | Llanarth | |||
| 1546 | Lochgilphead | |||
| 1547 | Knighton | |||
| 1548 | Kingsbridge | |||
| 1549 | Lairg | |||
| 1550 | Llandovery | |||
| 1551, 1552 | Geographic - unassigned | |||
| 1553 | Kings Lynn | |||
| 1554 | Llanelli | |||
| 1555 | Lanark | |||
| 1556 | Castle Douglas | |||
| 1557 | Kirkcudbright | |||
| 1558 | Llandeilo | |||
| 1559 | Llandyssul | |||
| 1560 | Moscow | |||
| 1561 | Laurencekirk | |||
| 1562 | Kidderminster | |||
| 1563 | Kilmarnock | |||
| 1564 | Lapworth | |||
| 1565 | Knutsford | |||
| 1566 | Launceston | |||
| 1567 | Killin | |||
| 1568 | Leominster | |||
| 1569 | Stonehaven | |||
| 1570 | Lampeter | |||
| 1571 | Lochinver | |||
| 1572 | Oakham | |||
| 1573 | Kelso | |||
| 1574 | Geographic - unassigned (formerly Larne) | |||
| 1575 | Kirriemuir | |||
| 1576 | Lockerbie | |||
| 1577 | Kinross | |||
| 1578 | Lauder | |||
| 1579 | Liskeard | |||
| 1580 | Cranbrook | |||
| 1581 | New Luce | |||
| 1582 | Luton | |||
| 1583 | Carradale | |||
| 1584 | Ludlow | |||
| 1585 | Geographic - unassigned | |||
| 1586 | Campbeltown | |||
| 1587 | Geographic - unassigned | |||
| 1588 | Bishops Castle | |||
| 1589 | Geographic - unassigned | |||
| 1590 | Lymington | |||
| 1591 | Llanwrtyd Wells | |||
| 1592 | Kirkcaldy | |||
| 1593 | Lybster | |||
| 1594 | Lydney | |||
| 1595 | Lerwick,Foula & Fair Isle | |||
| 1596 | Geographic - unassigned | |||
| 1597 | Llandrindod Wells | |||
| 1598 | Lynton | |||
| 1599 | Kyle |