Data as of Nov 8, 2026
204.217.159.0/24
Anonymizer · Datacenter proxyLeaseweb Deutschland GmbH · space held by Cogent Communications, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Datacenter proxy
Risk
85 / 100 · Critical
IPv4 market
Path
1 · Holder
record created Dec 29, 1994 · reallocated to Aventice LLC Nov 26, 2021
4 · Use
Datacenter proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 204.217.159.0/24 | /24s |
|---|---|---|
| Aventice | 256100% | 1 |
Leased from
Owners leasing their own space
| Name | In 204.217.159.0/24 | /24s |
|---|---|---|
| Cogent Communications, LLC | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
204.217.159.0/24
From the registry to its use
- Dec 29, 1994Registry recordCogent Communications, LLCDirect Allocation (legacy, pre-1997)204.217.0.0/16
- May 9, 2005– today
- Nov 26, 2021ReallocatedAventice LLCReallocated204.217.128.0/17
- Dec 11, 2021– Jul 9, 2023
- Jun 28, 2023– Feb 10, 2024
- Jan 30, 2024– Mar 29, 2024
- May 17, 2024– today
- Jul 26, 2026Route objectAS28753 Leaseweb Deutschland GmbHARIN route object for AS28753 Leaseweb Deutschland GmbH, maintainer MNT-AL-584
- todayLeased fromAventiceIP broker
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Anonymizer addresses | Leased from | Holder | RPKI |
|---|---|---|---|---|---|---|
| 204.217.0.0/16 since May 2005 | AS174 | Internet provider | 5,3768.2%ISP proxy | IP broker Aventice (part) | Cogent Communications, LLC |
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 |
|---|---|---|---|---|---|---|
| 204.217.0.0/16 | 65,536 | COGENT-204-217-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Dec 29, 1994 | abuse@ |
| └ 204.217.128.0/17 | 32,768 | NET-204-217-128-0-1 | Aventice LLC (AL-584) · US | Reallocated | Nov 26, 2021 | abuse@ |
Network & registry
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 204.
217. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Dec 29, 1994
- Legacy
- yes
- Reallocated to
- Aventice LLC (AL-584)
- Reallocated range
- 204.
217. 128. 0/ 17 - Reallocated
- Nov 26, 2021
Origin network
AS28753
DE
- Name
- Leaseweb Deutschland GmbH
- Type
- Hosting
- Registered
- Feb 17, 2003
- Domain
- leaseweb.com
- Website
- www.leaseweb.com/contact#germany
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 6
- Tor exits
- 4
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Dec 2021
- Current origin since
- May 2024 · 2.5 yr
- Origin networks
- 3
- Last change of origin
- May 2024
Recorded history
History
- Handoffs
- 3
Whois
Registration for this announcement
- Range
- 204.
217. 128. 0/ 17 - Netname
- NET-204-217-128-0-1
- Registrant
- Aventice LLC
- Organization
- Aventice LLC (AL-584)
- Org address
- 7301 W. PALMETTO PARK RD, BOCA RATON, FL, 33433
- Org country
- US
- Type
- Reallocated
- Handle
- NET-204-217-128-0-1
- Parent
- NET-204-217-0-0-1
- Created
- Nov 26, 2021
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 29, 1994
- Status
- assigned
Report abuse
Abuse contact
- abuse@
aventice. com - Name
- Abuse
- Phone
- +1-214-530-2046
- Handle
- ABUSE7905-ARIN