Data as of Nov 5, 2026
207.55.152.0/21
Anonymizer · ISP proxy1 residential-proxy exit · 30 daysLevel 3 Parent, LLC · space held by NTT America, Inc.
Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Oct 10, 2026
its first announcement on record
Residential-proxy exits
Proxy exits
1
0.05% of its addresses · 30 days
Spread
1 of 8
/24s with at least one exit
Providers
17
selling exits here
Oct 6, 2026 – Nov 4, 2026
Exits seen per day
281 observations
Proxy providers listing exits
- BirdProxies
- Byteful
- CliProxy
- EnigmaProxy
- GSocks
- IPPeak
- Infatica
- MangoProxy
- NodeProxy
- NovProxy
- NovaProxy
- ProxyEmpire
- Proxyma
- RainProxy
- Shifter
- VantageProxies
- VitalExclusive
IPv4 market
Path
Announced by AS10753 since Oct 10, 2026 · 4 wk ago
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 207.55.152.0/21 | /24s |
|---|---|---|
| Rackdog | 2,048100% | 8 |
Leased from
Owners leasing their own space
| Name | In 207.55.152.0/21 | /24s |
|---|---|---|
| NTT America, Inc. | 2,048100% | 8 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
207.55.152.0/21
From the registry to its use
- Feb 23, 1996Registry recordNTT America, Inc.Direct Allocation (legacy, pre-1997)207.55.128.0 - 207.55.223.255
- May 9, 2005– Jun 27, 2016
- Aug 15, 2016– today
- Oct 8, 2026AssignedRCNReassigned207.55.152.0/21
- Oct 10, 2026– today
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 207.55.128.0/18 since Aug 2016 | AS2914 | Internet provider | 2 | NTT America, Inc. |
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 |
|---|---|---|---|---|---|---|
| 207. | 24,576 | NTTA-207-55-128 | NTT America, Inc. (NTTAM-1) · US | Direct Allocation | Feb 23, 1996 | abuse@ |
| └ 207.55.152.0/21 | 2,048 | RCN-207-55-152 | RCN (C11732745) · US | Reassigned | Oct 8, 2026 | abuse@ via NTTA-207-55-128 |
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
- NTT America, Inc.
- Handle
- NTTAM-1
- Range
- 207.
55. 128. 0 - 207. 55. 223. 255 - Registration type
- Direct Allocation
- Record created
- Feb 23, 1996
- Legacy
- yes
Origin network
AS10753
US
- Name
- Level 3 Parent, LLC
- Type
- Internet provider
- Registered
- Nov 18, 1997
- Domain
- level3.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 10, 2026
- Current origin since
- Oct 10, 2026 · under a month
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 207.55.152.0/21 | AS3320 | /24 | ARIN | Another network |
| 207.55.152.0/21 | AS3491 | /24 | ARIN | Another network |
| 207.55.152.0/21 | AS4826 | /24 | ARIN | Another network |
| 207.55.152.0/21 | AS6079 | /24 | ARIN | Another network |
| 207.55.152.0/21 | AS7029 | /24 | ARIN | Another network |
| 207.55.152.0/21 | AS7459 | /24 | ARIN | Another network |
| 207.55.152.0/21 | AS10753 | /24 | ARIN | RPKI valid |
| 207.55.152.0/21 | AS11404 | /24 | ARIN | Another network |
| 207.55.152.0/21 | AS20115 | /24 | ARIN | Another network |
| 207.55.152.0/21 | AS22773 | /24 | ARIN | Another network |
| 207.55.152.0/21 | AS42689 | /24 | ARIN | Another network |
| 207.55.152.0/21 | AS398465 | /24 | ARIN | Another network |
| 207.55.128.0/18 | AS2914 | /18 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 207.
55. 152. 0/ 21 - Netname
- RCN-207-55-152
- Registrant
- RCN
- Organization
- RCN (C11732745)
- Type
- Reassigned
- Handle
- NET-207-55-152-0-1
- Parent
- NET-207-55-128-0-1
- Created
- Oct 8, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 23, 1996
- Status
- assigned
Report abuse
Abuse contact
- abuse@
ntt. net - Name
- NTT America Abuse Contact
- Phone
- +1-877-688-6625
- Handle
- NAAC-ARIN