Data as of Nov 3, 2026
166.88.0.0/24
Anonymizer · ISP proxyGTT Communications Inc. · space held by Ace Data Centers II, L.L.C.
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 AS3257 since Aug 2026 · 10 wk ago
2 · Leased from
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 166.88.0.0/24 | /24s |
|---|---|---|
| Ace Data Centers | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
166.88.0.0/24
From the registry to its use
- Oct 26, 2012Registry recordAce Data Centers II, L.L.C.Direct Allocation166.88.0.0/16
- Aug 1, 2021– Aug 12, 2021
- May 16, 2022– Jun 8, 2022
- Oct 14, 2023– May 23, 2025
- May 24, 2025– Jun 23, 2026
- Jun 12, 2026– Jul 29, 2026
- Jul 6, 2026– Jul 29, 2026
- Aug 18, 2026AssignedMetronetReassigned166.88.0.0/24
- Aug 23, 2026– Nov 2, 2026
- Aug 25, 2026Route objectAS3257 GTT Communications Inc.ARIN route object for AS3257 GTT Communications Inc., maintainer MNT-ADCIL
- todayLeased fromAce Data CentersIP 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 |
|---|---|---|---|---|---|---|
| 166.88.0.0/16 | 65,536 | ADCIL | Ace Data Centers II, L.L.C. (ADCIL) · US | Direct Allocation | Oct 26, 2012 | [email protected] |
| └ 166.88.0.0/24 | 256 | METRONET | Metronet (C11684502) · US | Reassigned | Aug 18, 2026 | [email protected] via ADCIL |
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 II, L.L.C.
- Handle
- ADCIL
- Range
- 166.88.0.0/16
- Registration type
- Direct Allocation
- Record created
- Oct 26, 2012
Origin network
AS3257
US
- Name
- GTT Communications Inc.
- Type
- Internet provider
- Registered
- Sep 30, 1994
- Domain
- gtt.net
- Website
- www.gtt.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 244
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Aug 2021
- Current origin since
- Aug 2026 · 2 mo
- Origin networks
- 6
- Last change of origin
- Aug 2026
Recorded history
History
- Handoffs
- 5
Whois
Registration for this announcement
- Range
- 166.88.0.0/24
- Netname
- METRONET
- Registrant
- Metronet
- Organization
- Metronet (C11684502)
- Type
- Reassigned
- Handle
- NET-166-88-0-0-2
- Parent
- NET-166-88-0-0-1
- Created
- Aug 18, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 26, 2012
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Abuse
- Phone
- +1-801-851-5540
- Handle
- ABUSE8727-ARIN