Data as of Nov 3, 2026
207.91.104.0/21
Anonymizer · ISP proxyGlide Student & Residential Limited · 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
IPv4 market
Path
Announced by AS42689 since Oct 10, 2026 · 3 wk ago
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 207.91.104.0/21 | /24s |
|---|---|---|
| Rackdog | 2,048100% | 8 |
Leased from
Owners leasing their own space
| Name | In 207.91.104.0/21 | /24s |
|---|---|---|
| NTT America, Inc. | 2,048100% | 8 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
207.91.104.0/21
From the registry to its use
- Apr 3, 1996Registry recordNTT America, Inc.Direct Allocation (legacy, pre-1997)207.91.64.0/18
- May 9, 2005– Jun 27, 2016
- Aug 15, 2016– Nov 2, 2026
- Oct 8, 2026AssignedRCNReassigned207.91.104.0/21
- Oct 10, 2026– Nov 2, 2026
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Anonymizer addresses | Holder | RPKI |
|---|---|---|---|---|---|
| 207.91.64.0/18 since Aug 2016 | AS2914 | Internet provider | 2561.6%ISP proxy | 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 |
|---|---|---|---|---|---|---|
| 207.91.64.0/18 | 16,384 | NTTA-207-91-64 | NTT America, Inc. (NTTAM-1) · US | Direct Allocation | Apr 3, 1996 | [email protected] |
| └ 207.91.104.0/21 | 2,048 | RCN-207-91-104 | RCN (C11732751) · US | Reassigned | Oct 8, 2026 | [email protected] via NTTA-207-91-64 |
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
- 207.91.64.0/18
- Registration type
- Direct Allocation
- Record created
- Apr 3, 1996
- Legacy
- yes
Origin network
AS42689
GB
- Name
- Glide Student & Residential Limited
- Type
- Internet provider
- Registered
- Apr 2, 2007
- Domain
- glidegroup.co.uk
- Website
- glidegroup.co.uk/
- Industry
- Internet Service Provider (ISP)
- 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 |
|---|---|---|---|---|
| 207.91.104.0/21 | AS3320 | /24 | ARIN | Another network |
| 207.91.104.0/21 | AS3491 | /24 | ARIN | Another network |
| 207.91.104.0/21 | AS4826 | /24 | ARIN | Another network |
| 207.91.104.0/21 | AS6079 | /24 | ARIN | Another network |
| 207.91.104.0/21 | AS7029 | /24 | ARIN | Another network |
| 207.91.104.0/21 | AS7459 | /24 | ARIN | Another network |
| 207.91.104.0/21 | AS10753 | /24 | ARIN | Another network |
| 207.91.104.0/21 | AS11404 | /24 | ARIN | Another network |
| 207.91.104.0/21 | AS20115 | /24 | ARIN | Another network |
| 207.91.104.0/21 | AS22773 | /24 | ARIN | Another network |
| 207.91.104.0/21 | AS42689 | /24 | ARIN | RPKI valid |
| 207.91.104.0/21 | AS398465 | /24 | ARIN | Another network |
| 207.91.64.0/18 | AS2914 | /18 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 207.91.104.0/21
- Netname
- RCN-207-91-104
- Registrant
- RCN
- Organization
- RCN (C11732751)
- Type
- Reassigned
- Handle
- NET-207-91-104-0-1
- Parent
- NET-207-91-64-0-1
- Created
- Oct 8, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 3, 1996
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- NTT America Abuse Contact
- Phone
- +1-877-688-6625
- Handle
- NAAC-ARIN