Data as of Nov 8, 2026
206.73.0.0/16
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 |
|---|---|---|---|---|
| 206.73.0.0/19 since Mar 2026 | AS5400 | Unknown | INFONET Services Corporation | |
| 206.73.48.0/20 since Mar 2026 | AS5400 | Unknown | INFONET Services Corporation | |
| 206.73.80.0/20 since May 2025 | AS5400 | Unknown | INFONET Services Corporation | |
| 206.73.112.0/22 since Mar 2026 | AS5400 | Unknown | INFONET Services Corporation | |
| 206.73.116.0/22 since Mar 2026 | AS5400 | Unknown | INFONET Services Corporation | |
| 206.73.156.0/22 since May 2026 | AS5400 | Unknown | 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 |
|---|---|---|---|---|---|---|
| 206.73.0.0/16 | 65,536 | BT-GNV | INFONET Services Corporation (INFO) · US | Direct Allocation | Jul 25, 1995 | matthias. |
| └ 206.73.0.8/29 | 8 | YYYGF-CRTCUST1 | unknown | — | — | — |
| └ 206.73.0.24/29 | 8 | BT-AS5400-CC1-WB | unknown | — | — | — |
| └ 206.73.0.36/30 | 4 | BT-AS5400-CC1-WB | unknown | — | — | — |
| └ 206.73.0.40/30 | 4 | BT-AS5400-CC1-WB | unknown | — | — | — |
| └ 206.73.0.56/29 | 8 | BT-AS5400-CC1-WB | unknown | — | — | — |
| └ 206.73.0.112/29 | 8 | ARDAGH-GROUP | unknown | — | — | — |
| └ 206.73.0.176/28 | 16 | BT-AS5400-CC1-WB | unknown | — | — | — |
| └ 206.73.48.16/29 | 8 | BT-AS5400-CC1-WB | unknown | — | — | — |
| └ 206.73.48.24/29 | 8 | BT-AS5400-CC1-WB | unknown | — | — | — |
| └ 206.73.80.8/29 | 8 | BT-AS5400-CC1-WB | unknown | — | — | — |
| └ 206.73.80.208/29 | 8 | BT-AS5400-CC1-WB | unknown | — | — | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
65,536 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Unknown | 65,424 | >99% | 20 | |
| Business | 112 | 0.17% | 11 |
Network & registry
Origin network
AS5400
GB
- Name
- British Telecommunications Limited
- Type
- Internet provider
- Registered
- Aug 15, 1995
- Domain
- bt.net
- Website
- www.bt.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Apr 2020 · 6.6 yr
- Origin networks
- 2
- Last change of origin
- Apr 2020
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 206.73.0.0/16 | AS5400 | /16 | ARIN | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS5400 | ARIN | INFONET Services Corporation | MNT-INFO | Jun 9, 2026 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 206.73.32.0/20 | AS5400 | ARIN | BT Global Fabric Customers | MNT-INFO | Jun 9, 2026 |
| 206.73.39.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Oct 13, 2005 |
| 206.73.64.0/20 | AS5400 | ARIN | BT Global Fabric Customers | MNT-INFO | Jun 9, 2026 |
| 206.73.79.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.96.0/20 | AS5400 | ARIN | BT Global Fabric Customers | MNT-INFO | Jun 9, 2026 |
| 206.73.144.0/22 | AS5400 | ARIN | BT Global Fabric Customers | MNT-INFO | Jun 9, 2026 |
| 206.73.148.0/22 | AS5400 | ARIN | BT Global Fabric Customers | MNT-INFO | Jun 9, 2026 |
| 206.73.160.0/22 | AS5400 | ARIN | BT Global Fabric Customers | MNT-INFO | Jun 9, 2026 |
| 206.73.194.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.203.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.205.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.208.0/23 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 16, 2006 |
| 206.73.209.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.222.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.227.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.228.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.234.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.235.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.238.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.239.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.244.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
| 206.73.248.0/24 | AS3300 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | May 12, 2004 |
Whois
Registration for this announcement
- Range
- 206.
73. 0. 0/ 16 - Netname
- BT-GNV
- 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-206-73-0-0-1
- Parent
- NET-206-0-0-0-0
- Created
- Jul 25, 1995
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 25, 1995
- 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