Data as of Nov 11, 2026
154.13.136.0/21
256 anonymizer addresses · 13% · Datacenter proxyCogent Communications, LLC
IPv4 market
Path
1 · Holder
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 154.13.136.0/21 | /24s |
|---|---|---|
| Aventice | 25613% | 1 |
Leased from
Owners leasing their own space
| Name | In 154.13.136.0/21 | /24s |
|---|---|---|
| Cogent Communications, LLC | 25613% | 1 |
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Operator | Leased from | Holder | RPKI |
|---|---|---|---|---|---|---|
| 154.13.136.0/24 since Sep 2023 | AS212238 | Datacenter proxy | Proxy providerssold by Oxylabs | IP broker Aventice | Cogent Communications, LLC via Aventice LLC |
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 |
|---|---|---|---|---|---|---|
| 154.13.0.0/16 | 65,536 | COGENT-154-13-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Feb 5, 1992 | abuse@ |
| └ 154.13.136.0/21 | 2,048 | AVENTICE-CGNT-NET-18 | Aventice LLC (AL-584) · US | Reallocated | Dec 1, 2022 | abuse@ |
| └ 154.13.136.0/24 | 256 | NCRYPTD-NET-LTD | Ncryptd Net Ltd (C09770859) · US | Reassigned | Jul 6, 2023 | abuse@ via AVENTICE-CGNT-NET-18 |
| └ 154.13.137.0/24 | 256 | WIFIBER-IKE | Wifiber IKE (C09246119) · US | Reassigned | Feb 22, 2023 | abuse@ via AVENTICE-CGNT-NET-18 |
| └ 154.13.138.0/24 | 256 | WIFIBER-IKE | Wifiber IKE (C09233911) · US | Reassigned | Feb 20, 2023 | abuse@ via AVENTICE-CGNT-NET-18 |
| └ 154.13.139.0/24 | 256 | WIFIBER-IKE | Wifiber IKE (C09233917) · US | Reassigned | Feb 20, 2023 | abuse@ via AVENTICE-CGNT-NET-18 |
| └ 154.13.140.0/22 | 1,024 | WIFIBER-IKE | Wifiber IKE (C09233918) · US | Reassigned | Feb 20, 2023 | abuse@ via AVENTICE-CGNT-NET-18 |
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 | 1,792 | 88% | 1 | |
| Datacenter proxyanonymizer | 256 | 13% | 1 |
Network & registry
Announced by
Covering announcement 154.12.0.0/15
- Prefix
- 154.12.0.0/15
- Announced by
- AS174 Cogent Communications, LLC
- Type
- Internet provider
- Anonymizer addresses
- 5,632 addresses · 4.3%ISP proxy
- Operator
- Proxy providersoperated by High Proxies
- Leased from
- IP broker Aventice (part)
- Proxy exits
- 652
- Always-on exits
- 166
- RPKI
- No RPKI
- RIR
- ARIN
IPv4 market
Holder
- Organization
- Not stated by the registry
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
- 2,094
Routing timeline
Who has announced 154.12.0.0/15
154.12.0.0/15
Routing history
- Pattern
- Stable
- First seen
- Jan 2007
- Current origin since
- Jan 2007 · 20 yr
- Origin networks
- 1
Whois
Registration for this announcement
154.12.0.0/15 spans several registrations: 50 records are listed under Registrations.
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 5, 1992
- Status
- assigned