Data as of Nov 5, 2026
209.28.174.0/24
No anonymizer space · no proxy exits in 30 daysBritish Telecommunications Limited · space held by INFONET Services Corporation
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 209.28.0.0/16 since May 2005 | AS3300 | Residential | INFONET Services Corporation |
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 |
|---|---|---|---|---|---|---|
| 209.28.0.0/16 | 65,536 | BT-CNF-1 | INFONET Services Corporation (INFO) · US | Direct Allocation | Jan 28, 1997 | matthias. |
| └ 209.28.174.0/24 | 256 | INTERNALFW-200 | Internal-FW (C00919591) · US | Reassigned | Sep 29, 2004 | matthias. via BT-CNF-1 |
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
Registry
Holder
- Organization
- INFONET Services Corporation
- Handle
- INFO
- Range
- 209.
28. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Jan 28, 1997
- Legacy
- yes
Origin network
AS3300
GB
- Name
- British Telecommunications Limited
- Type
- Internet provider
- Registered
- Oct 28, 1994
- Domain
- bt.net
- Website
- www.bt.net
- 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
- Aug 2006
- Current origin since
- Aug 2006 · 20 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 209.28.0.0/16 | AS3300 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 209.
28. 174. 0/ 24 - Netname
- INTERNALFW-200
- Registrant
- Internal-FW
- Organization
- Internal-FW (C00919591)
- Type
- Reassigned
- Handle
- NET-209-28-174-0-1
- Parent
- NET-209-28-0-0-1
- Created
- Sep 29, 2004
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 28, 1997
- Status
- assigned
Report abuse
Abuse contact
- matthias.
blum@ bt. com - Name
- American Registry for IP Numbers -Point of Contact
- Phone
- +1-310-335-2600
- Handle
- AR2-ORG-ARIN