Data as of Nov 3, 2026
37.1.104.0/21
No anonymizer space · no proxy exits in 30 daysonecentral B.V.
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 37.1.104.0/23 since Dec 2011 | AS49250 | Internet provider | onecentral B.V. | |
| 37.1.108.0/23 since Feb 2020 | AS49250 | Internet provider | onecentral B.V. |
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 |
|---|---|---|---|---|---|---|
| 37.1.104.0/21 | 2,048 | NL-ONECENTRAL-20111212 | onecentral B.V. (ORG-OB27-RIPE) · NL | ALLOCATED PA | Dec 12, 2011 | [email protected] |
| └ 37.1.104.0/23 | 512 | BROADBAND_AMS1_NETWORK | onecentral B.V. | ASSIGNED PA | Dec 15, 2011 | [email protected] via NL-ONECENTRAL-20111212 |
| └ 37.1.106.0/24 | 256 | COLO_NETWORK | onecentral B.V. | ASSIGNED PA | Dec 15, 2011 | [email protected] via NL-ONECENTRAL-20111212 |
| └ 37.1.107.0/24 | 256 | CLOUD-SERVER-NETWORK | unknown | ASSIGNED PA | Jan 20, 2014 | [email protected] via NL-ONECENTRAL-20111212 |
| └ 37.1.108.0/24 | 256 | VOICE-CUSTOMER-NETWORK | unknown | ASSIGNED PA | May 27, 2015 | [email protected] via NL-ONECENTRAL-20111212 |
| └ 37.1.109.0/24 | 256 | WEAS-Rt | unknown | ASSIGNED PA | Feb 9, 2017 | [email protected] via NL-ONECENTRAL-20111212 |
| └ 37.1.110.0/24 | 256 | DSL-network1 | unknown | ASSIGNED PA | Feb 9, 2017 | [email protected] via NL-ONECENTRAL-20111212 |
| └ 37.1.111.0/24 | 256 | EURO-CUSTOMER-NETWORK | unknown | ASSIGNED PA | Feb 9, 2017 | [email protected] via NL-ONECENTRAL-20111212 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
2,048 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 1,280 | 63% | 3 | |
| Hosting | 512 | 25% | 2 | |
| Residential | 256 | 13% | 1 |
Network & registry
Origin network
AS49250
NL
- Name
- onecentral B.V.
- Type
- Internet provider
- Registered
- May 7, 2009
- Domain
- onecentral.nl
- Website
- onecentral.nl
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2020
- Current origin since
- Feb 2020 · 6.7 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 37.1.104.0/21 | AS49250 | /24 | RIPE | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS49250 | RIPE | onecentral B.V. | ONECENTRAL | Dec 15, 2011 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 37.1.106.0/23 | AS49250 | RIPE | ONECENTRAL | Jan 30, 2020 | |
| 37.1.106.0/24 | AS49250 | RIPE | onecentral B.V. | ONECENTRAL | Dec 15, 2011 |
| 37.1.107.0/24 | AS49250 | RIPE | onecentral B.V. | ONECENTRAL | Feb 5, 2014 |
| 37.1.110.0/23 | AS49250 | RIPE | ONECENTRAL | Jan 30, 2020 |
Whois
Registration for this announcement
- Range
- 37.1.104.0/21
- Netname
- NL-ONECENTRAL-20111212
- Registrant
- onecentral B.V.
- Registrant country
- NL
- Organization
- onecentral B.V. (ORG-OB27-RIPE)
- Org country
- NL
- Type
- ALLOCATED PA
- Created
- Dec 12, 2011
- Updated
- Sep 9, 2016
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Dec 12, 2011
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Abuse NOC
- Handle
- AN28726-RIPE