123.51.154.0/24
Currently announced by AS4780 New Century InfoComm Tech Co.,Ltd., in the routed prefix 123.51.154.0/24.
- Current ASN
- AS4780
- New Century InfoComm Tech Co.,Ltd.
- Routed prefix
- 123.51.154.0/24
- Most specific route covering this prefix
- ASNs over time
- 2
- 5 announcement records
- RIR allocation
- APNIC
- Taiwan · 123.51.128.0/17
Routing data · Nov 1, 2026, 18:24 UTC
ASN historyEvery routed prefix covering 123.51.154.0/24
| Prefix | ASN | Name | Registered country | First seen (UTC) | Last seen (UTC) | Status |
|---|---|---|---|---|---|---|
| 123.51.154.0/24 | AS4780 | New Century InfoComm Tech Co.,Ltd. |  Taiwan | Before monitoring | 2026-11-01 18:24 | Announcing |
| 123.51.154.0/24 | AS9919 | New Century InfoComm Tech Co., Ltd. | Taiwan | 2026-10-30 22:21 | 2026-10-31 08:19 | Stopped |
| 123.51.128.0/19 | AS9919 | New Century InfoComm Tech Co., Ltd. | Taiwan | Before monitoring | 2026-11-01 18:24 | Announcing |
| 123.51.128.0/18 | AS9919 | New Century InfoComm Tech Co., Ltd. | Taiwan | Before monitoring | 2026-11-01 18:24 | Announcing |
| 123.51.128.0/17 | AS9919 | New Century InfoComm Tech Co., Ltd. | Taiwan | Before monitoring | 2026-11-01 18:24 | Announcing |
More specific routes0 total
No more specific routes inside this prefix.
Change logAll changes
| Detected (UTC) | Prefix | Change | ASN | Name | Previous ASN | Country |
|---|---|---|---|---|---|---|
| 2026-10-30 22:21 | 123.51.154.0/24 | Origin changeNo longer announced | AS9919 | New Century InfoComm Tech Co., Ltd. | AS4780 | Taiwan |