Data as of Nov 7, 2026
143.203.135.0/24
No anonymizer space · no proxy exits in 30 daysAS218200
Announcement
this exact prefix
RPKI valid
Announced by
Type
Unknown
Risk
0 / 100 · Low
Recent change
New origin Nov 7, 2026
its first announcement on record
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 |
|---|---|---|---|---|---|---|
| 143.203.132.0/22 | 1,024 | SYNIAC-L | Syniac (AS-3989) · US | Direct Allocation | Oct 2, 2026 | abusedept@ |
| └ 143.203.132.0/22 | 1,024 | SYNIAC-22 | IPXO LLC (IL-845) · US | Reallocated | Oct 6, 2026 | abuse@ |
| └ 143.203.132.0/22 | 1,024 | NETUTILS | Internet Utilities NA LLC (DCL-577) · US | Reallocated | Oct 8, 2026 | report@ |
Network & registry
Origin network
AS218200
HK
- Registered
- Nov 3, 2026
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Nov 7, 2026
- Current origin since
- Nov 7, 2026 · under a month
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 143.203.135.0/24 | AS218200 | /24 | ARIN | RPKI valid |
| 143.203.135.0/24 | AS218201 | /24 | ARIN | Another network |
| 143.203.135.0/24 | AS218202 | /24 | ARIN | Another network |
| 143.203.135.0/24 | AS219047 | /24 | ARIN | Another network |
| 143.203.135.0/24 | AS219053 | /24 | ARIN | Another network |
| 143.203.135.0/24 | AS219057 | /24 | ARIN | Another network |
| 143.203.135.0/24 | AS219447 | /24 | ARIN | Another network |
Whois
Registration for this announcement
143.203.135.0/24 spans several registrations: 3 records are listed under Registrations.
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 2, 2026
- Status
- assigned