Data as of Nov 3, 2026
166.1.112.0/21
Anonymizer · ISP proxyRCN · space held by Ace Data Centers, Inc.
Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recently moved
Recent change
New origin Aug 2026
from AS401152 Ace Data Centers II, L.L.C.
IPv4 market
Path
Announced by AS6079 since Aug 2026 · 12 wk ago
2 · Leased from
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 166.1.112.0/21 | /24s |
|---|---|---|
| Ace Data Centers | 2,048100% | 8 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
166.1.112.0/21
From the registry to its use
- Jul 10, 2012Registry recordAce Data Centers, Inc.Direct Allocation166.0.0.0/15
- Apr 27, 2021– May 8, 2021
- Apr 27, 2021– Jul 7, 2021AnnouncedAS1239 Cogent Communications, LLC
- Mar 12, 2023– Apr 28, 2023
- Jul 18, 2026– Jul 29, 2026
- Jul 29, 2026AssignedRCNReassigned166.1.112.0/21
- Aug 3, 2026
- Aug 11, 2026– today
- todayLeased fromAce Data CentersIP broker
- todayLeased fromIPXOIP 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 |
|---|---|---|---|---|---|---|
| 166.0.0.0/15 | 131,072 | ACE-NETWORK-10 | Ace Data Centers, Inc. (ADC-96) · US | Direct Allocation | Jul 10, 2012 | [email protected] |
| └ 166.1.112.0/21 | 2,048 | RCN | RCN (C11663146) · US | Reassigned | Jul 29, 2026 | [email protected] via ACE-NETWORK-10 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
IPv4 market
Holder
- Organization
- Ace Data Centers, Inc.
- Handle
- ADC-96
- Range
- 166.0.0.0/15
- Registration type
- Direct Allocation
- Record created
- Jul 10, 2012
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 this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Apr 2021
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 5
- Last change of origin
- Aug 2026
Recorded history
History
- Handoffs
- 4
Whois
Registration for this announcement
- Range
- 166.1.112.0/21
- Netname
- RCN
- Registrant
- RCN
- Organization
- RCN (C11663146)
- Type
- Reassigned
- Handle
- NET-166-1-112-0-1
- Parent
- NET-166-0-0-0-1
- Created
- Jul 29, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 10, 2012
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Abuse
- Phone
- +1-801-851-5540
- Handle
- ABUSE8727-ARIN