Data as of Nov 9, 2026
63.250.144.0/24
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 | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 63.250.144.0/22 since Aug 2016 | AS3300 | Residential | 1 | INFONET Services Corporation | |
| 63.250.128.0/18 since May 2005 | AS3300 | Residential | 5 1 always on | 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 |
|---|---|---|---|---|---|---|
| 63.250.128.0/18 | 16,384 | BT-IP-ICG-GIIB-BLK1 | INFONET Services Corporation (INFO) · US | Direct Allocation | Nov 19, 1999 | matthias. |
| └ 63.250.144.130/31 | 2 | UNILEVERPLC | unknown | — | — | — |
| └ 63.250.144.132/31 | 2 | UNILEVERPLC | unknown | — | — | — |
| └ 63.250.144.134/31 | 2 | UNILEVERPLC | unknown | — | — | — |
| └ 63.250.144.136/29 | 8 | STELLANTIS | unknown | — | — | — |
| └ 63.250.144.144/29 | 8 | BUERKERT | unknown | — | — | — |
| └ 63.250.144.152/29 | 8 | ABB | unknown | — | — | — |
| └ 63.250.144.160/29 | 8 | SCHINDLERHOLDING | unknown | — | — | — |
| └ 63.250.144.184/29 | 8 | UNILEVERPLC | unknown | — | — | — |
| └ 63.250.144.192/29 | 8 | HFW | unknown | — | — | — |
| └ 63.250.144.200/30 | 4 | BASFSE | unknown | — | — | — |
| └ 63.250.144.204/30 | 4 | BASFSE | unknown | — | — | — |
| └ 63.250.144.208/29 | 8 | SCHINDLERHOLDING | unknown | — | — | — |
| └ 63.250.144.216/29 | 8 | SCHINDLERHOLDING | unknown | — | — | — |
| └ 63.250.144.228/30 | 4 | UNILEVERPLC | unknown | — | — | — |
| └ 63.250.144.232/29 | 8 | STELLANTIS | unknown | — | — | — |
| └ 63.250.144.240/29 | 8 | HOLMANFENWICKWILLANLLP | unknown | — | — | — |
| └ 63.250.144.248/29 | 8 | STELLANTIS | unknown | — | — | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
256 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 150 | 59% | 3 | |
| Business | 106 | 41% | 17 |
Network & registry
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
- Mar 2020
- Current origin since
- Aug 2024 · 2.2 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 63.250.144.0/24 | AS3300 | /24 | ARIN | RPKI valid |
| 63.250.144.0/22 | AS3300 | /22 | ARIN | Too specific |
| 63.250.128.0/18 | AS3300 | /18 | ARIN | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS3300 | ARIN | BT ICG/GIIB Brazil | MNT-INFO | Apr 19, 2026 |
Whois
Registration for this announcement
- Range
- 63.
250. 128. 0/ 18 - Netname
- BT-IP-ICG-GIIB-BLK1
- 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-63-250-128-0-1
- Parent
- NET-63-0-0-0-0
- Created
- Nov 19, 1999
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 19, 1999
- 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