1.255.0.0/16

17 assigned ranges in this /16.

/24 breakdown

Block	Top country	Countries	ASNs	Ranges
1.255.3.0/24	South Korea (100%)	1	1	1
1.255.4.0/24	South Korea (100%)	1	1	1
1.255.6.0/24	South Korea (100%)	1	1	1
1.255.7.0/24	South Korea (100%)	1	1	1
1.255.30.0/24	United States (100%)	1	1	1
1.255.31.0/24	South Korea (100%)	1	1	1
1.255.48.0/24	South Korea (100%)	1	1	1
1.255.64.0/24	South Korea (100%)	1	1	1
1.255.75.0/24	South Korea (100%)	1	1	1
1.255.76.0/24	South Korea (100%)	1	1	1
1.255.77.0/24	South Korea (100%)	1	1	1
1.255.79.0/24	South Korea (100%)	1	1	1
1.255.123.0/24	South Korea (100%)	1	1	1
1.255.127.0/24	South Korea (100%)	1	1	1
1.255.128.0/24	South Korea (100%)	1	1	1
1.255.227.0/24	South Korea (100%)	1	1	1
1.255.228.0/24	South Korea (100%)	1	1	1

Range	ASN	Org	Country
`1.255.3.0 – 1.255.3.255`	AS23594	YKK KOREA CO. LTD.	KR
`1.255.4.0 – 1.255.5.255`	AS9318	SK Broadband Co Ltd	KR
`1.255.6.0 – 1.255.6.255`	AS38389	FAMOUS WORKER	KR
`1.255.7.0 – 1.255.29.255`	AS9318	SK Broadband Co Ltd	KR
`1.255.30.0 – 1.255.30.255`	AS63199	CDS Global Cloud Co. Ltd	US
`1.255.31.0 – 1.255.47.255`	AS9318	SK Broadband Co Ltd	KR
`1.255.48.0 – 1.255.63.255`	AS23576	NAVER Cloud Corp.	KR
`1.255.64.0 – 1.255.74.255`	AS9318	SK Broadband Co Ltd	KR
`1.255.75.0 – 1.255.75.255`	AS9638	National Agricultural Cooperative federation	KR
`1.255.76.0 – 1.255.76.255`	AS9318	SK Broadband Co Ltd	KR
`1.255.77.0 – 1.255.78.255`	AS9638	National Agricultural Cooperative federation	KR
`1.255.79.0 – 1.255.122.255`	AS9318	SK Broadband Co Ltd	KR
`1.255.123.0 – 1.255.126.255`	AS9770	LG HelloVision Corp.	KR
`1.255.127.0 – 1.255.127.255`	AS9704	Korea Investment Trust Management Securities Co. LTD	KR
`1.255.128.0 – 1.255.226.255`	AS9318	SK Broadband Co Ltd	KR

2 more ranges in this block.