Data as of Nov 7, 2026
217.74.21.0/24
No anonymizer space · no proxy exits in 30 daysStackster LLC · space held by Legaco Networks B.V.
Announcement
this exact prefix
RPKI valid
Announced by
Type
Unknown
Risk
40 / 100 · Medium
Leased space · Recently moved
Recent change
New origin Jul 2026
from AS39855 Mod Mission Critical LLC
IPv4 market
Path
Announced by AS48806 since Jul 2026 · 3 mo ago
2 · Leased from
4 · Use
Unknown
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
217.74.21.0/24
From the registry to its use
- Nov 24, 2021AssignedMOD Mission Critical LLCASSIGNED PA217.74.21.0/24
- Nov 24, 2021Route objectAS39855 Mod Mission Critical LLCRIPE route object for AS39855 Mod Mission Critical LLC, maintainer PREFIXBROKER-MNT
- Dec 11, 2021– Aug 10, 2026
- Feb 21, 2023Registry recordLegaco Networks B.V.ALLOCATED PA217.74.16.0/21
- Jun 2, 2023Route objectAS39855 Mod Mission Critical LLCRADB route object for AS39855 Mod Mission Critical LLC, maintainer MAINT-AS54103
- Jul 30, 2026– today
- todayLeased fromPrefixBrokerIP 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 |
|---|---|---|---|---|---|---|
| 217.74.16.0/21 | 2,048 | NL-LEGACO-20110914 | Legaco Networks B.V. (ORG-LNB4-RIPE) · NL | ALLOCATED PA | Feb 21, 2023 | abuse@ |
| └ 217.74.21.0/24 | 256 | MODMI-217-74-21-0 | MOD Mission Critical LLC (ORG-MMCL9-RIPE) · NL | ASSIGNED PA | Nov 24, 2021 | support@ |
Network & registry
IPv4 market
Holder
- Organization
- Legaco Networks B.V.
- Handle
- ORG-LNB4-RIPE
- Range
- 217.
74. 16. 0/ 21 - Registration type
- ALLOCATED PA
- Record created
- Feb 21, 2023
Origin network
AS48806
US
- Name
- Stackster LLC
- Type
- Hosting
- Registered
- Sep 27, 2018
- Domain
- stack.net
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Dec 2021
- Current origin since
- Jul 2026 · 3 mo
- Origin networks
- 2
- Last change of origin
- Jul 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
Whois
Registration for this announcement
- Range
- 217.
74. 21. 0/ 24 - Netname
- MODMI-217-74-21-0
- Registrant
- MOD Mission Critical LLC
- Registrant country
- NL
- Organization
- MOD Mission Critical LLC (ORG-MMCL9-RIPE)
- Org country
- NL
- Type
- ASSIGNED PA
- Created
- Nov 24, 2021
- Updated
- Nov 24, 2021
- Maintainer
- PREFIXBROKER-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Sep 14, 2011
- Status
- assigned
Report abuse
Abuse contact
- support@
modmc. net - Name
- MOD Mission Critical LLC abuse handling
- Handle
- MMCL8-RIPE