Data as of Nov 9, 2026
177.1.204.0/22
Anonymizer · ISP proxyGTT Communications Inc. · space held by Ace Data Centers II, LLC
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.
registry: sub-allocated pa to NTT Communications Corporation by Ace Data Centers II, LLC, Sep 25, 2026
IPv4 market
Path
Reallocated to NTT Communications Corporation · Sep 25, 2026 · 6 wk ago · by Ace Data Centers II, LLC
1 · Holder
record created Jul 6, 2026 · reallocated to NTT Communications Corporation Sep 25, 2026
2 · Leased from
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 177.1.204.0/22 | /24s |
|---|---|---|
| Ace Data Centers | 1,024100% | 4 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
177.1.204.0/22
From the registry to its use
- Jul 6, 2026Registry recordAce Data Centers II, LLCALLOCATED PA177.1.176.0 - 177.1.207.255
- Jul 30, 2026– Aug 22, 2026
- Aug 23, 2026– Nov 8, 2026
- Aug 28, 2026Route objectAS3257 GTT Communications Inc.RIPE route object for AS3257 GTT Communications Inc., maintainer LIR-US-ACEDATACENTER-1-MNT
- Sep 25, 2026ReallocatedNTT Communications CorporationSUB-ALLOCATED PA177.1.204.0/22
- 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 |
|---|---|---|---|---|---|---|
| 177. | 8,192 | US-ACEDATACENTER-20250313 | Ace Data Centers II, LLC (ORG-ADCI1-RIPE) · US | ALLOCATED PA | Jul 6, 2026 | ipabuse@ |
| └ 177.1.204.0/22 | 1,024 | NTT-Communications-Corporation | NTT Communications Corporation | SUB-ALLOCATED PA | Sep 25, 2026 | ipabuse@ via US-ACEDATACENTER-20250313 |
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, LLC
- Handle
- ORG-ADCI1-RIPE
- Range
- 177.
1. 176. 0 - 177. 1. 207. 255 - Registration type
- ALLOCATED PA
- Record created
- Jul 6, 2026
- Reallocated to
- NTT Communications Corporation
- Reallocated range
- 177.
1. 204. 0/ 22 - Reallocation type
- SUB-ALLOCATED PA
- Reallocated
- Sep 25, 2026
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
- Jul 2026
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 2
- Last change of origin
- Aug 2026
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 177.
1. 204. 0/ 22 - Netname
- NTT-Communications-Corporation
- Registrant
- NTT Communications Corporation
- Registrant country
- FR
- Organization
- NTT Communications Corporation
- Org country
- FR
- Type
- SUB-ALLOCATED PA
- Created
- Sep 25, 2026
- Updated
- Sep 25, 2026
- Maintainer
- lir-us-acedatacenter-1-MNT
- RIR
- RIPE NCC
- Country
- US
- Delegated
- Mar 13, 2025
- Status
- assigned
Report abuse
Abuse contact
- ipabuse@
acedatacenter. com - Name
- Abuse-C Role
- Handle
- AR74401-RIPE