Data as of Nov 7, 2026
81.173.99.164/30
No anonymizer space · no proxy exits in 30 daysSewan Nederland B.V.
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 81.173.96.0/22 | 1,024 | NL-POCOS-20030219 | Sewan Nederland B.V. (ORG-PB32-RIPE) · NL | ALLOCATED PA | Apr 23, 2019 | abuse@ |
| └ 81.173.99.164/30 | 4 | Subscriber-35EgertonCresentSW32EB-London | unknown | ASSIGNED PA | Dec 1, 2020 | abuse@ via NL-POCOS-20030219 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 81.173.96.0/22
- Prefix
- 81.173.96.0/22
- Announced by
- AS50522 Sewan Nederland B.V.
- Type
- Residential
- Proxy exits
- 5
- RPKI
- RPKI valid
- Netname
- NL-POCOS-20030219
- Registrant
- Sewan Nederland B.V.
- RIR
- RIPE NCC
Origin network
AS50522
NL
- Name
- Sewan Nederland B.V.
- Type
- Internet provider
- Registered
- Feb 2, 2010
- Domain
- sewan.nl
- Website
- www.sewan.nl/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 81.173.96.0/22
81.173.96.0/22
Routing history
- Pattern
- Stable
- First seen
- May 2017
- Current origin since
- Apr 2019 · 7.5 yr
- Origin networks
- 2
- Last change of origin
- Apr 2019
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 81.173.96.0/22 | AS50522 | /22 | RIPE | RPKI valid |
IRR
Route objects on 81.173.96.0/22
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS50522 | RIPE | Pocos Networks | POCOS-MNT | Apr 24, 2019 |
Whois
Registration for this announcement
- Range
- 81.
173. 96. 0/ 22 - Netname
- NL-POCOS-20030219
- Registrant
- Sewan Nederland B.V.
- Registrant country
- NL
- Organization
- Sewan Nederland B.V. (ORG-PB32-RIPE)
- Org country
- NL
- Type
- ALLOCATED PA
- Created
- Apr 23, 2019
- Updated
- Apr 23, 2019
- Maintainer
- POCOS-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Feb 19, 2003
- Status
- assigned
Report abuse
Abuse contact
- abuse@
sewan. nl - Name
- SEWAN-NL-NOC
- Handle
- SWN50522