Data as of Nov 3, 2026
121.53.0.0/16
No anonymizer space · no proxy exits in 30 daysDreamline Co.
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 121.53.22.0/24 since Jan 2009 | AS9845 | Residential | Dreamline Co. | |
| 121.53.80.0/21 since Apr 2019 | AS7625 | Business | Dreamline Co. | |
| 121.53.88.0/24 since May 2023 | AS7625 | Business | Dreamline Co. | |
| 121.53.89.0/24 since May 2023 | AS7625 | Business | Dreamline Co. | |
| 121.53.90.0/24 since Jan 2024 | AS18160 | Business | Dreamline Co. | |
| 121.53.91.0/24 since Jan 2024 | AS18160 | Business | Dreamline Co. | |
| 121.53.92.0/24 since Jan 2024 | AS18160 | Business | Dreamline Co. | |
| 121.53.93.0/24 since Jan 2024 | AS18160 | Business | Dreamline Co. | |
| 121.53.94.0/24 since Jan 2024 | AS18160 | Business | Dreamline Co. | |
| 121.53.95.0/24 since Jan 2024 | AS18160 | Business | Dreamline Co. | |
| 121.53.104.0/23 since Feb 2022 | AS38099 | Business | Dreamline Co. | |
| 121.53.106.0/23 since Feb 2022 | AS38099 | Business | Dreamline Co. | |
| 121.53.108.0/24 since Feb 2023 | AS38099 | Business | Dreamline Co. | |
| 121.53.109.0/24 since Feb 2023 | AS38099 | Business | Dreamline Co. | |
| 121.53.110.0/24 since Feb 2023 | AS38099 | Business | Dreamline Co. | |
| 121.53.111.0/24 since Feb 2023 | AS38099 | Business | Dreamline Co. | |
| 121.53.176.0/23 since Mar 2020 | AS38099 | Business | Dreamline Co. | |
| 121.53.178.0/23 since Jun 2025 | AS10178 | Business | Dreamline Co. | |
| 121.53.180.0/24 since Jul 2020 | AS38099 | Business | Dreamline Co. | |
| 121.53.181.0/24 since Jul 2020 | AS38099 | Business | Dreamline Co. | |
| 121.53.200.0/24 since Jan 2018 | AS38099 | Business | Dreamline Co. | |
| 121.53.201.0/24 since Jan 2018 | AS38099 | Business | Dreamline Co. | |
| 121.53.202.0/24 since Jan 2018 | AS38099 | Business | Dreamline Co. | |
| 121.53.203.0/24 since Jan 2018 | AS38099 | Business | Dreamline Co. | |
| 121.53.204.0/24 since Jan 2018 | AS38099 | Business | Dreamline Co. | |
| 121.53.205.0/24 since Jan 2018 | AS38099 | Business | Dreamline Co. | |
| 121.53.206.0/24 since Jan 2018 | AS38099 | Business | Dreamline Co. | |
| 121.53.207.0/24 since Jan 2018 | AS38099 | Business | Dreamline Co. | |
| 121.53.216.0/22 since Apr 2019 | AS7625 | Business | Dreamline Co. | |
| 121.53.220.0/24 since Jan 2024 | AS18160 | Business | Dreamline Co. | |
| 121.53.221.0/24 since Jan 2024 | AS18160 | Business | Dreamline Co. | |
| 121.53.222.0/24 since Jan 2024 | AS18160 | Business | Dreamline Co. | |
| 121.53.223.0/24 since Jan 2024 | AS18160 | Business | Dreamline Co. | |
| 121.53.230.0/24 since May 2025 | AS152199 | Business | Dreamline Co. | |
| 121.53.231.0/24 since May 2025 | AS152199 | Business | Dreamline Co. | |
| 121.53.234.0/24 since Oct 2023 | AS7625 | Business | Dreamline Co. | |
| 121.53.235.0/24 since Oct 2023 | AS7625 | Business | Dreamline Co. | |
| 121.53.236.0/24 since Oct 2023 | AS7625 | Business | Dreamline Co. | |
| 121.53.237.0/24 since Oct 2023 | AS7625 | Business | Dreamline Co. | |
| 121.53.238.0/23 since Nov 2023 | AS7625 | Business | Dreamline Co. | |
| 121.53.238.0/24 since Oct 2023 | AS7625 | Business | Dreamline Co. | |
| 121.53.239.0/24 since Oct 2023 | AS7625 | Business | Dreamline Co. | |
| 121.53.240.0/22 since Apr 2019 | AS7625 | Business | Dreamline Co. | |
| 121.53.244.0/22 since Oct 2017 | AS38099 | Business | Dreamline Co. | |
| 121.53.248.0/24 since Mar 2020 | AS17878 | Hosting | Dreamline Co. | |
| 121.53.255.0/24 since Jan 2020 | AS38101 | Business | Dreamline Co. |
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 | |
|---|---|---|---|---|
| Internet provider | 48,896 | 75% | 9 | |
| Business | 16,128 | 25% | 43 | |
| Hosting | 256 | 0.39% | 1 | |
| Residential | 256 | 0.39% | 1 |
Network & registry
Origin network
AS9457
KR
- Name
- Dreamline Co.
- Type
- Internet provider
- Registered
- Nov 30, 1998
- Domain
- dreamline.co.kr
- Website
- dreamline.co.kr
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2006
- Current origin since
- Jun 2006 · 20 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS9318 not the origin | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Jul 7, 2006 |
| AS9318 not the origin | RADB | SK Broadband | MAINT-AS9318 | Nov 13, 2023 |
| AS9457 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| AS9457 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 121.53.0.0/17 | AS9457 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.0.0/17 | AS9457 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Jan 7, 2010 |
| 121.53.2.0/23 | AS9845 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 121.53.2.0/23 | AS9845 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Sep 22, 2007 |
| 121.53.4.0/22 | AS9845 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 121.53.4.0/22 | AS9845 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.8.0/21 | AS9845 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 121.53.8.0/21 | AS9845 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Sep 22, 2007 |
| 121.53.8.0/22 | AS9845 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.12.0/22 | AS9845 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.16.0/20 | AS9845 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 121.53.16.0/20 | AS9845 | NTTCOM | Proxy-registered route object | MAINT-AS9304 | Sep 22, 2007 |
| 121.53.16.0/22 | AS9845 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.24.0/22 | AS9845 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.28.0/22 | AS9845 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.32.0/19 | AS38091 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 121.53.32.0/22 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.36.0/22 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.50.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.51.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.52.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.53.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.54.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.55.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.56.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.57.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.64.0/20 | AS38091 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 121.53.64.0/21 | AS38091 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.72.0/21 | AS38091 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.72.0/21 | AS38091 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.72.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.73.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.74.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.75.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.76.0/22 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.80.0/20 | AS38091 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 121.53.88.0/21 | AS38091 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.96.0/20 | AS38091 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 121.53.96.0/21 | AS38091 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.98.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.99.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.104.0/21 | AS38091 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.112.0/20 | AS38091 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 121.53.112.0/21 | AS38091 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.112.0/21 | AS38091 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.120.0/21 | AS38091 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.126.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.128.0/17 | AS9457 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.128.0/17 | AS9457 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Jan 7, 2010 |
| 121.53.128.0/20 | AS38091 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 121.53.131.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.132.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.134.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.135.0/24 | AS9770 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.136.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.137.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.138.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.139.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.140.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.144.0/20 | AS38091 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 121.53.144.0/22 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.148.0/23 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.150.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.151.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.152.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.154.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.155.0/24 | AS38669 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.159.0/24 | AS38091 | RADB | SejongTelecom.co.ltd | MAINT-AS4670 | Nov 13, 2023 |
| 121.53.160.0/22 | AS38091 | RADB | Proxy-registered route object | MAINT-AS9304 | Nov 13, 2023 |
| 121.53.172.0/24 | AS9697 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.173.0/24 | AS9697 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.174.0/24 | AS9697 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.175.0/24 | AS9697 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.182.0/24 | AS9697 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.183.0/24 | AS9697 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.184.0/24 | AS9697 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.185.0/24 | AS9697 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.186.0/24 | AS9697 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.187.0/24 | AS9697 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.188.0/24 | AS9697 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.189.0/24 | AS9697 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.190.0/24 | AS9697 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.191.0/24 | AS9697 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
| 121.53.192.0/24 | AS9845 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.193.0/24 | AS9845 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.194.0/24 | AS9845 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.195.0/24 | AS9845 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.196.0/24 | AS9845 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.197.0/24 | AS9845 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.198.0/24 | AS9845 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.199.0/24 | AS9845 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 121.53.200.0/21 | AS38099 | RADB | Kakao Corp. | MAINT-AS10158 | Feb 3, 2025 |
| 121.53.208.0/24 | AS10158 | RADB | Kakao | MAINT-AS9318 | Sep 30, 2025 |
| 121.53.209.0/24 | AS10158 | RADB | Kakao | MAINT-AS9318 | Sep 30, 2025 |
| 121.53.212.0/22 | AS10158 | RADB | Kakao | MAINT-AS9318 | Sep 30, 2025 |
| 121.53.224.0/22 | AS10158 | RADB | Kakao | MAINT-AS9318 | Sep 30, 2025 |
| 121.53.226.0/24 | AS10158 | RADB | Kakao | MAINT-AS9318 | Sep 30, 2025 |
| 121.53.228.0/24 | AS10158 | RADB | Kakao | MAINT-AS9318 | Sep 30, 2025 |
| 121.53.229.0/24 | AS10158 | RADB | Kakao | MAINT-AS9318 | Sep 30, 2025 |
| 121.53.232.0/24 | AS10158 | RADB | Kakao | MAINT-AS9318 | Sep 30, 2025 |
| 121.53.233.0/24 | AS10158 | RADB | Kakao | MAINT-AS9318 | Sep 30, 2025 |
Whois
Registration for this announcement
- Range
- 121.53.0.0/16
- Netname
- DREAMX-KR
- Registrant
- Dreamline Co.
- Registrant country
- KR
- Organization
- Dreamline Co.
- Org country
- KR
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Maintainer
- MNT-KRNIC-AP
- RIR
- APNIC
- Country
- KR
- Delegated
- Jun 19, 2006
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- IRT-KRNIC-KR
- Handle
- IRT-KRNIC-KR