Data as of Nov 4, 2026
37.0.23.0/24
1 residential-proxy exit · 30 daysDDFR IT Infra & Security B.V.
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
3
selling exits here
Oct 5, 2026 – Nov 3, 2026
Exits seen per day
23 observations
Proxy providers listing exits
- AnyIP
- CliProxy
- FloppyData
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 |
|---|---|---|---|---|---|---|
| 37.0.16.0/21 | 2,048 | NL-DCF-20111207 | DDFR IT Infra & Security B.V. (ORG-DFB1-RIPE) · NL | ALLOCATED PA | Dec 7, 2011 | info@ |
| └ 37.0.23.0/29 | 8 | DDF-KN-VVV-Ameland | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.8/29 | 8 | DDF-KN-DVC2 | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.16/30 | 4 | DDF-KN-Fugro-USA-Marine-INC | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.20/30 | 4 | DDFR | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.28/30 | 4 | DDF-Schoolmaster | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.32/29 | 8 | DDF-KN-VanDerHeide | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.40/29 | 8 | DDF-Arrix-testrange | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.48/28 | 16 | DDF-Carestream-DMZ | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.64/28 | 16 | DDF-DWF-01 | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.80/30 | 4 | DDF-Bijlsma | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.84/30 | 4 | DDFR-vrij | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.92/30 | 4 | Viadata-RL2 | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.128/27 | 32 | DDF-FreezIT-4 | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.160/28 | 16 | DDF-Fritom-NO-RISK | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.176/30 | 4 | DDF-ATB-2 | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.180/30 | 4 | DDF-Netsupport-PA-RL | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.184/29 | 8 | DDF-Netsupport-PA | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
| └ 37.0.23.240/29 | 8 | DDF-Netsupport-PA-02 | unknown | ASSIGNED PA | Mar 9, 2020 | info@ via NL-DCF-20111207 |
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
256 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 252 | 98% | 2 | |
| Business | 4 | 1.6% | 1 |
Network & registry
Announced by
Covering announcement 37.0.16.0/21
- Prefix
- 37.0.16.0/21
- Announced by
- AS35467 DDFR IT Infra & Security B.V.
- Type
- Residential
- Proxy exits
- 7
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- NL-DCF-20111207
- Registrant
- DDFR IT Infra & Security B.V.
- RIR
- RIPE NCC
Origin network
AS35467
NL
- Name
- DDFR IT Infra & Security B.V.
- Type
- Internet provider
- Registered
- Aug 12, 2005
- Domain
- ddfr.nl
- Website
- www.ddfr.nl
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 37.0.16.0/21
37.0.16.0/21
Routing history
- Pattern
- Stable
- First seen
- Dec 2011
- Current origin since
- Dec 2011 · 15 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 37.0.16.0/21 | AS35467 | /22 | RIPE | RPKI valid |
IRR
Route objects on 37.0.16.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS35467 | RIPE | DDFR | DATADIENSTENFRYSLAN | Jun 8, 2017 |
Whois
Registration for this announcement
- Range
- 37.
0. 16. 0/ 21 - Netname
- NL-DCF-20111207
- Registrant
- DDFR IT Infra & Security B.V.
- Registrant country
- NL
- Organization
- DDFR IT Infra & Security B.V. (ORG-DFB1-RIPE)
- Org country
- NL
- Type
- ALLOCATED PA
- Created
- Dec 7, 2011
- Updated
- Mar 5, 2026
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Dec 7, 2011
- Status
- assigned
Report abuse
Abuse contact
- info@
ddfr. nl - Name
- Abuse contact role object
- Handle
- ACRO61245-RIPE