Data as of Nov 3, 2026
154.13.252.0/22
Anonymizer · ISP proxyCogent Communications, LLC
Announcement
this exact prefix
No RPKI
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Oct 10, 2026
from AS174 Cogent Communications, LLC, after 4.5 years unannounced
IPv4 market
Path
Announced by AS174 since Oct 10, 2026 · 3 wk ago
1 · Holder
record created Feb 5, 1992 · reallocated to Aventice LLC Dec 8, 2021
2 · Leased from
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 154.13.252.0/22 | /24s |
|---|---|---|
| Aventice | 1,024100% | 4 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
154.13.252.0/22
From the registry to its use
- Feb 5, 1992Registry recordCogent Communications, LLCDirect Allocation (legacy, pre-1997)154.13.0.0/16
- Jan 8, 2007– Nov 2, 2026
- Dec 8, 2021ReallocatedAventice LLCReallocated154.13.192.0/18
- Dec 11, 2021– Apr 9, 2022
- Oct 10, 2026– Nov 2, 2026
- todayLeased fromAventiceIP broker
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Anonymizer addresses | Operator | Leased from | Proxy exits | RPKI |
|---|---|---|---|---|---|---|---|
| 154.12.0.0/15 since Jan 2007 | AS174 | Internet provider | 9,2167.0%ISP proxy | Proxy providersoperated by High Proxies | IP broker Aventice (part) | 618 171 always on |
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 |
|---|---|---|---|---|---|---|
| 154.13.0.0/16 | 65,536 | COGENT-154-13-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Feb 5, 1992 | [email protected] |
| └ 154.13.192.0/18 | 16,384 | AVENTICE-CGNT-NET-3 | Aventice LLC (AL-584) · US | Reallocated | Dec 8, 2021 | [email protected] |
Network & registry
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 154.13.0.0/16
- Registration type
- Direct Allocation
- Record created
- Feb 5, 1992
- Legacy
- yes
- Reallocated to
- Aventice LLC (AL-584)
- Reallocated range
- 154.13.192.0/18
- Reallocated
- Dec 8, 2021
Origin network
AS174
US
- Name
- Cogent Communications, LLC
- Type
- Internet provider
- Registered
- May 16, 1996
- Domain
- cogentco.com
- Website
- www.cogentco.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 1,658
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2021
- Current origin since
- Oct 10, 2026 · under a month
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 154.13.192.0/18
- Netname
- AVENTICE-CGNT-NET-3
- 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-154-13-192-0-1
- Parent
- NET-154-13-0-0-1
- Created
- Dec 8, 2021
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 5, 1992
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Abuse
- Phone
- +1-214-530-2046
- Handle
- ABUSE7905-ARIN