AS9920
IMPROVE SYSTEM TECHNOLOGY CO., LTD.
TWUnknown2026-07-01
Announced prefixes 1
Snapshot history
| Date | Name | Country | Class | Prefixes |
|---|---|---|---|---|
| 2026-11-13 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-11-12 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-11-11 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-11-10 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-11-09 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-11-08 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-11-07 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-11-06 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-11-05 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-11-04 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-11-03 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-11-02 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-11-01 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-31 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-30 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-29 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-28 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-27 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-26 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-25 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-24 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-23 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-22 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-21 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-20 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-19 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-18 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-17 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-16 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-15 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-14 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-13 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-12 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-11 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-10 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-09 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-08 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-07 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-06 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-05 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-04 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-03 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-02 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-10-01 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-30 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-29 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-28 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-27 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-26 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-25 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-24 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-23 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-22 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-21 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-20 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-19 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-18 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-17 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-16 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-15 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-14 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-13 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-12 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-11 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-10 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-09 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-08 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-07 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-06 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-05 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-04 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-03 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-02 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-09-01 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-31 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-30 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-29 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-28 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-27 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-26 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-25 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-24 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-23 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-22 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-21 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-20 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-19 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-18 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-17 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-16 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-15 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-08-14 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-13 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-12 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-11 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-10 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-09 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-08 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-07 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-06 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-05 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-04 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-03 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-02 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-08-01 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-31 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-30 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-29 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-28 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-27 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-26 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-25 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-24 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-23 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-22 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-21 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-20 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-19 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-18 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-17 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-16 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-15 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-14 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-13 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-12 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-11 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-10 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-09 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-08 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-07 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-06 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 2 |
| 2026-07-05 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-07-04 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-07-03 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-07-02 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-07-01 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-30 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-29 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-28 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-27 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-26 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-25 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-24 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-23 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-22 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-21 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-20 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-19 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-18 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-17 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-16 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 1 |
| 2026-06-15 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-06-14 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
| 2026-06-13 | IMPROVE SYSTEM TECHNOLOGY CO., LTD. | TW | Unknown | 0 |
IP-block changes
Open full filtered history →| Observed | Block | Action | Previous origins | New origins |
|---|---|---|---|---|
| 2026-08-15 | 103.173.95.0/24 | Released | AS9920 | — |
| 2026-08-15 | 2407:e4c0:1::/48 | Released | AS9920 | — |
| 2026-07-06 | 2407:e4c0:1::/48 | Acquired | — | AS9920 |
| 2026-06-16 | 103.173.95.0/24 | Acquired | — | AS9920 |
Changes page 1