AS18042 is the autonomous system of Koos Broadband Telecom. It holds 123,136 IPv4 addresses in 5 prefixes plus 1 IPv6 ranges, mainly in 
Taiwan.
By IPv4 addresses the network ranks #1,668 worldwide and #23 of 258 networks in Taiwan. That is 0.33% of the country’s IPv4 space.
The largest block is 58.86.0.0 to 58.86.255.255 with 65,536 addresses, geolocated to Yingge District.
- IPv4 addresses
- 123,136
- IPv4 prefixes
- 5
- World rank
- #1,668
- Country share
- 0.33%
- IPv6 ranges
- 1
Addresses by country
- Taiwan 100%
Largest blocks
- 58.86.0.0 Yingge District65,536
- 61.67.128.0 Taipei32,768
- 61.63.0.0 Taipei24,576
- 103.123.188.0 Taipei256
Networks of similar size
- AS51570 JSC "ER-Telecom Holding"
123,392 - AS8648 dogado GmbH
123,392 - AS53755 Input Output Flood LLC
123,392 - AS16904 Arvig Enterprises Inc.123,136
- AS2495 Kansas Research and Education Network123,136
- AS19752 Hydro One Telecom Inc.
123,136 - AS3790 RADIOGRAFICA COSTARRICENSE
123,136 - AS8585 Crnogorski Telekom a.d.Podgorica
122,880
IPv4 prefixes
Questions and answers
Who owns AS18042?
Autonomous system AS18042 is operated by Koos Broadband Telecom.
How many IP addresses does AS18042 have?
The network holds 123,136 IPv4 addresses in 5 prefixes, plus 1 IPv6 ranges.
Which country is AS18042 in?
The main country is Taiwan.
How big is AS18042?
By IPv4 addresses it ranks #1,668 worldwide.
What is the largest address block of AS18042?
58.86.0.0 to 58.86.255.255, 65,536 addresses.