Data as of Nov 5, 2026
187.54.52.0/22
No anonymizer space · no proxy exits in 30 daysLevel 3 Parent, LLC · space held by Ctcsci Tech Limited
Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Recent change
New origin Oct 10, 2026
from AS137897 PAN-Lian Technology Co., Limited
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 187.54.48.0/21 since Oct 10, 2026 | AS137897 | Hosting | Ctcsci Tech Limited via PAN-Lian Technology Co., Limited(pumpcloud) |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 187.54.52.0/24 since Oct 10, 2026 | AS137897 | Hosting | Ctcsci Tech Limited via PAN-Lian Technology Co., Limited(pumpcloud) | |
| 187.54.53.0/24 since Oct 10, 2026 | AS137897 | Hosting | Ctcsci Tech Limited via PAN-Lian Technology Co., Limited(pumpcloud) | |
| 187.54.54.0/23 since Oct 10, 2026 | AS137897 | Hosting | Ctcsci Tech Limited via PAN-Lian Technology Co., Limited(pumpcloud) | |
| 187.54.54.0/24 since Oct 10, 2026 | AS137897 | Hosting | Ctcsci Tech Limited via PAN-Lian Technology Co., Limited(pumpcloud) | |
| 187.54.55.0/24 since Oct 10, 2026 | AS137897 | Hosting | Ctcsci Tech Limited via PAN-Lian Technology Co., Limited(pumpcloud) |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 187.54.48.0/20 | 4,096 | CTCSCITECHLIMITED-HK | Ctcsci Tech Limited (ORG-CTL14-AP) · HK | ALLOCATED PORTABLE | — | abuse@ |
| └ 187.54.48.0/21 | 2,048 | PUMPCLOUD-APAC | PAN-Lian Technology Co., Limited(pumpcloud) | ALLOCATED NON-PORTABLE | — | abuse@ |
Network & registry
Registry
Holder
- Organization
- Ctcsci Tech Limited
- Handle
- ORG-CTL14-AP
- Range
- 187.
54. 48. 0/ 20 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- PAN-Lian Technology Co., Limited(pumpcloud)
- Reallocated range
- 187.
54. 48. 0/ 21 - Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS10753
US
- Name
- Level 3 Parent, LLC
- Type
- Internet provider
- Registered
- Nov 18, 1997
- Domain
- level3.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Oct 10, 2026
- Current origin since
- Oct 10, 2026 · under a month
- Origin networks
- 2
- Last change of origin
- Oct 10, 2026
Recorded history
History
- Handoffs
- 1
- Also announced by
- 137897
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 187.54.48.0/21 | AS3491 | /24 | APNIC | Another network |
| 187.54.48.0/21 | AS400618 | /24 | APNIC | Another network |
| 187.54.48.0/21 | AS4515 | /22 | APNIC | Another network |
| 187.54.48.0/21 | AS10753 | /22 | APNIC | RPKI valid |
| 187.54.48.0/21 | AS137897 | /22 | APNIC | Another network |
| 187.54.48.0/21 | AS206675 | /22 | APNIC | Another network |
| 187.54.48.0/21 | AS8796 | /21 | APNIC | Another network |
| 187.54.48.0/21 | AS395886 | /21 | APNIC | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS3491 not the origin | APNIC | CTCSCI TECH LIMITED | MAINT-CTCSCITECHLIMITED-HK | Jun 17, 2026 |
| AS4515 not the origin | APNIC | CTCSCI TECH LIMITED | MAINT-CTCSCITECHLIMITED-HK | May 22, 2026 |
| AS10753 | APNIC | CTCSCI TECH LIMITED | MAINT-CTCSCITECHLIMITED-HK | May 22, 2026 |
| AS137897 not the origin | APNIC | CTCSCI TECH LIMITED | MAINT-CTCSCITECHLIMITED-HK | Jun 17, 2026 |
| AS206675 not the origin | APNIC | CTCSCI TECH LIMITED | MAINT-CTCSCITECHLIMITED-HK | May 22, 2026 |
| AS400618 not the origin | APNIC | CTCSCI TECH LIMITED | MAINT-CTCSCITECHLIMITED-HK | Jul 6, 2026 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 187.54.52.0/23 | AS3491 | APNIC | CTCSCI TECH LIMITED | MAINT-CTCSCITECHLIMITED-HK | Jun 17, 2026 |
| 187.54.52.0/23 | AS400618 | APNIC | CTCSCI TECH LIMITED | MAINT-CTCSCITECHLIMITED-HK | Jul 6, 2026 |
Whois
Registration for this announcement
- Range
- 187.
54. 48. 0/ 21 - Netname
- PUMPCLOUD-APAC
- Registrant
- PAN-Lian Technology Co., Limited(pumpcloud)
- Registrant country
- HK
- Organization
- PAN-Lian Technology Co., Limited(pumpcloud)
- Org country
- HK
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Oct 21, 2026
- Maintainer
- MAINT-CTCSCITECHLIMITED-HK
- RIR
- APNIC
- Country
- HK
- Delegated
- Mar 13, 2025
- Status
- assigned
Report abuse
Abuse contact
- abuse@
ctcsci. com - Name
- ABUSE CTCSCITECHLIMITEDHK
- Handle
- AC2739-AP