Data as of Nov 11, 2026
192.157.154.0/23
No anonymizer space · no proxy exits in 30 daysBritish Telecommunications Limited · space held by INFONET Services Corporation
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 192.157.155.0/24 since Nov 10, 2026 | AS212556 | Unknown | INFONET Services Corporation |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 192. | 8,192 | BT-IP-ICG-GIIB-BLK6 | INFONET Services Corporation (INFO) · US | Direct Allocation | Apr 17, 1992 | matthias. |
| └ 192. | 1,280 | INTERLEAF4 | INTERLEAF (C01080868) · DE | Reassigned | Feb 14, 1995 | matthias. via BT-IP-ICG-GIIB-BLK6 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
512 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 256 | 50% | 1 | |
| Unknown | 256 | 50% | 1 |
Network & registry
Announced by
Covering announcement 192.157.144.0/20
- Prefix
- 192.157.144.0/20
- Announced by
- AS3300 British Telecommunications Limited
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- BT-IP-ICG-GIIB-BLK6
- Registrant
- INFONET Services Corporation
- RIR
- ARIN
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
Who has announced 192.157.144.0/20
192.157.144.0/20
Routing history
- Pattern
- Stable
- First seen
- Jun 2024
- Current origin since
- Jun 2024 · 2.4 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 192.157.144.0/20 | AS3300 | /24 | ARIN | RPKI valid |
IRR
Route objects on 192.157.144.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS3300 | ARIN | BT | MNT-INFO | Aug 1, 2025 |
Whois
Registration for this announcement
- Range
- 192.
157. 130. 0 - 192. 157. 161. 255 - Netname
- BT-IP-ICG-GIIB-BLK6
- Registrant
- INFONET Services Corporation
- Organization
- INFONET Services Corporation (INFO)
- Org address
- 2160 East Grand Avenue, El Segundo, CA, 90245-1022
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-192-157-130-0-1
- Parent
- NET-192-0-0-0-0
- Created
- Apr 17, 1992
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 17, 1992
- 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