Data as of Nov 4, 2026
61.57.136.0/21
No anonymizer space · no proxy exits in 30 daysExtra-Lan Technologies Co., LTD · space held by Taiwan Network Information Center
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 61.57.140.0/23 since Dec 2022 | AS18429 | Internet provider | Taiwan Network Information Center | |
| 61.57.142.0/23 since Jul 2022 | AS18429 | Internet provider | Taiwan Network Information Center |
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 |
|---|---|---|---|---|---|---|
| 61.56.0.0/13 | 524,288 | TWNIC-TW | Taiwan Network Information Center | ALLOCATED PORTABLE | — | [email protected] |
| └ 61.57.128.0/20 | 4,096 | ELNET-NET | Extra-Lan Technologies Co., LTD | ALLOCATED PORTABLE | — | [email protected] |
Network & registry
IPv4 market
Holder
- Organization
- Taiwan Network Information Center
- Range
- 61.56.0.0/13
- Registration type
- ALLOCATED PORTABLE
Origin network
AS18429
TW
- Name
- Extra-Lan Technologies Co., LTD
- Type
- Internet provider
- Registered
- Dec 20, 2002
- Domain
- extra-lan.com.tw
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2007
- Current origin since
- Sep 2007 · 19 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 61.57.136.0/21 | AS18429 | /23 | APNIC | RPKI valid |
| 61.57.128.0/20 | AS18429 | /24 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 61.57.128.0/20
- Netname
- ELNET-NET
- Registrant
- Extra-Lan Technologies Co., LTD
- Registrant country
- TW
- Organization
- Extra-Lan Technologies Co., LTD
- Org country
- TW
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 7, 2025
- Maintainer
- MAINT-TW-TWNIC
- RIR
- APNIC
- Country
- TW
- Delegated
- Feb 21, 2001
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- ABUSE TWNICAP
- Handle
- AT939-AP