Data as of Nov 10, 2026
74.52.76.0/22
Anonymizer · ISP proxyRCN · reallocated from Skyline Networks Company Limited
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Jun 2026
its first announcement on record
IPv4 market
Path
Announced by AS6079 since Jun 2026 · 5 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
Owners leasing their own space
| Name | In 74.52.76.0/22 | /24s |
|---|---|---|
| Skyline Networks Company Limited | 1,024100% | 4 |
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 |
|---|---|---|---|---|---|---|
| 74.52.0.0/16 | 65,536 | SKYLINE1-HK | Skyline Networks Company Limited (ORG-SNCL3-AP) · HK | ALLOCATED PORTABLE | — | noc@ |
| └ 74.52.0.0/17 | 32,768 | SKYLINE1-HK | Skyline Networks Company Limited | ALLOCATED NON-PORTABLE | — | report@ |
| └ 74.52.64.0/18 | 16,384 | RCN | RCN | ALLOCATED NON-PORTABLE | — | noc@ |
Network & registry
Announced by
Covering announcement 74.52.64.0/20
- Prefix
- 74.52.64.0/20
- Announced by
- AS6079 RCN
- Type
- ISP proxy
- Anonymizer addresses
- all
- RPKI
- RPKI valid
- Netname
- RCN
- Registrant
- RCN
- RIR
- APNIC
IPv4 market
Holder
- Organization
- Skyline Networks Company Limited
- Handle
- ORG-SNCL3-AP
- Range
- 74.
52. 0. 0/ 16 - Registration type
- ALLOCATED PORTABLE
- Reallocated to
- RCN
- Reallocated range
- 74.
52. 64. 0/ 18 - Reallocation type
- ALLOCATED NON-PORTABLE
Origin network
AS6079
US
- Name
- RCN
- Type
- Internet provider
- Registered
- Apr 4, 2001
- Domain
- astound.com
- Website
- www.astound.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 74.52.64.0/20
74.52.64.0/20
Routing history
- Pattern
- Stable
- First seen
- Jun 2026
- Current origin since
- Jun 2026 · 5 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 74.52.64.0/18 | AS6079 | /24 | APNIC | RPKI valid |
IRR
Route objects on 74.52.64.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS6079 | APNIC | RCN | MAINT-SKYLINE1-HK | Jun 24, 2026 |
Whois
Registration for this announcement
- Range
- 74.
52. 64. 0/ 18 - Netname
- RCN
- Registrant
- RCN
- Registrant country
- US
- Organization
- RCN
- Org country
- US
- Type
- ALLOCATED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Jun 27, 2026
- Maintainer
- MAINT-SKYLINE1-HK
- RIR
- APNIC
- Country
- HK
- Delegated
- Feb 17, 2006
- Status
- assigned
Report abuse
Abuse contact
- noc@
skyline-idc. com - Name
- ABUSE SKYLINE1HK
- Handle
- AS2235-AP