Data as of Nov 9, 2026
218.33.110.0/24
No anonymizer space · no proxy exits in 30 daysBack Waves Limited · space held by Rumahweb
Announcement
this exact prefix
RPKI valid
Announced by
Type
Unknown
Risk
40 / 100 · Medium
Leased space
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
218.33.110.0/24
From the registry to its use
- Jun 17, 2025– Nov 19, 2025
- Mar 20, 2026– today
- todayRegistry recordRumahwebALLOCATED PORTABLE218.33.0.0/17
- todayReallocatedBack Waves Limited - JPALLOCATED NON-PORTABLE218.33.110.0/24
- todayLeased fromIPXOIP broker
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 |
|---|---|---|---|---|---|---|
| 218.33.0.0/17 | 32,768 | CRI-ID | Rumahweb (ORG-RA56-AP) · ID | ALLOCATED PORTABLE | — | abuse@ |
| └ 218.33.64.0/18 | 16,384 | RWIPXO | RW IPXO | ALLOCATED NON-PORTABLE | — | abuse@ |
| └ 218.33.110.0/24 | 256 | NET-218-33-110-0-24 | Back Waves Limited - JP | ALLOCATED NON-PORTABLE | — | support@ |
Network & registry
IPv4 market
Holder
- Organization
- Rumahweb
- Handle
- ORG-RA56-AP
- Range
- 218.
33. 0. 0/ 17 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- Back Waves Limited - JP
- Reallocated range
- 218.
33. 110. 0/ 24 - Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS153371
HK
- Name
- Back Waves Limited
- Type
- Internet provider
- Registered
- Oct 17, 2024
- Domain
- backwaves.ltd
- Website
- www.backwaves.ltd
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2025
- Current origin since
- Mar 2026 · 8 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 218.33.108.0/22 | AS153371 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 218.
33. 110. 0/ 24 - Netname
- NET-218-33-110-0-24
- Registrant
- Back Waves Limited - JP
- Registrant country
- JP
- Organization
- Back Waves Limited - JP
- Org country
- JP
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Jun 28, 2025
- Maintainer
- MAINT-010912-IPXO
- RIR
- APNIC
- Country
- ID
- Delegated
- Apr 17, 2003
- Status
- assigned
Report abuse
Abuse contact
- support@
help. ipxo. com - Name
- ABUSE X532424IPXO
- Handle
- AX210-AP