Data as of Nov 9, 2026
123.51.192.0/20
No anonymizer space · no proxy exits in 30 daysNew Century InfoComm Tech Co., Ltd.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 123.51.192.0/18 since Nov 2013 | AS9919 | Residential | 73 5 always on | New Century InfoComm Tech. Co., Ltd. | |
| 123.51.128.0/17 since Jul 2009 | AS9919 | Residential | 147 9 always on | New Century InfoComm Tech. Co., Ltd. |
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 123.51.193.0/24 since Dec 2024 | AS9919 | Residential | New Century InfoComm Tech. Co., Ltd. | |
| 123.51.194.0/24 since May 2022 | AS9919 | Residential | New Century InfoComm Tech. Co., Ltd. | |
| 123.51.195.0/24 since Dec 2024 | AS9919 | Residential | New Century InfoComm Tech. Co., Ltd. | |
| 123.51.196.0/24 since Jul 2018 | AS9919 | Residential | New Century InfoComm Tech. Co., Ltd. | |
| 123.51.197.0/24 since Nov 2023 | AS9919 | Residential | New Century InfoComm Tech. Co., Ltd. | |
| 123.51.198.0/24 since Nov 2023 | AS9919 | Residential | New Century InfoComm Tech. Co., Ltd. | |
| 123.51.199.0/24 since Dec 2024 | AS9919 | Residential | New Century InfoComm Tech. Co., Ltd. | |
| 123.51.200.0/23 since Jun 2019 | AS9919 | Residential | New Century InfoComm Tech. Co., Ltd. | |
| 123.51.200.0/24 since Apr 2019 | AS9919 | Residential | New Century InfoComm Tech. Co., Ltd. | |
| 123.51.202.0/24 since Jul 2020 | AS9919 | Residential | New Century InfoComm Tech. Co., Ltd. | |
| 123.51.206.0/24 since May 2024 | AS9919 | Residential | New Century InfoComm Tech. Co., Ltd. |
Network & registry
Announced by
Covering announcement 123.51.192.0/19
- Prefix
- 123.51.192.0/19
- Announced by
- AS9919 New Century InfoComm Tech Co., Ltd.
- Type
- Residential
- Proxy exits
- 8
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- NCICNET-NET
- Registrant
- New Century InfoComm Tech. Co., Ltd.
- RIR
- APNIC
Origin network
AS9919
TW
- Name
- New Century InfoComm Tech Co., Ltd.
- Type
- Internet provider
- Registered
- Mar 28, 2000
- Domain
- seed.net.tw
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
123.51.192.0/19
Routing history
- Pattern
- Stable
- First seen
- Jan 2014
- Current origin since
- Jan 2014 · 13 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 123.51.128.0/17 | AS4780 | /24 | APNIC | Another network |
| 123.51.128.0/17 | AS9919 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 123.
51. 128. 0/ 17 - Netname
- NCICNET-NET
- Registrant
- New Century InfoComm Tech. Co., Ltd.
- Registrant country
- TW
- Organization
- New Century InfoComm Tech. Co., Ltd.
- Org country
- TW
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 30, 2023
- Maintainer
- MAINT-TW-TWNIC
- RIR
- APNIC
- Country
- TW
- Delegated
- Nov 20, 2008
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
twnic. tw - Name
- ABUSE TWNICAP
- Handle
- AT939-AP