Taiwan
Registry
apnic
RegDate
Updated
2009-09-29T05:34:08Z
AS131609 Looking Glass
IPv4Prefixes
2
IPv6Prefixes
0
IPv4 NUMs
512
IPv6 NUMs(/64)
0
| CIDR | Description | IP Num |
|---|---|---|
43.225.36.0/24
|
YC Yuan Cheng Co., Ltd | 256 |
|
45.204.133.0/24
|
Yuan_Cheng_Co_Ltd Yuan Cheng Co., Ltd. | 256 |
| AS | Description | Country / Region | IPv4 NUMs | IPv6 NUMs | IPv4 | IPv6 |
|---|---|---|---|---|---|---|
| AS13335 | CLOUDFLARENET - Cloudflare, Inc., US |
|
1,366,016 | 82,706,169,856 | IPv4  |
 |
Whois Record
as-block AS131072 - AS132095
| as-block | |
|---|---|
| descr | APNIC 32-bit ASN block |
| remarks | These AS numbers are further assigned by APNIC to APNIC members and end-users in the APNIC region |
| admin-c | HM20-AP |
| tech-c | HM20-AP |
| mnt-by | APNIC-HM |
| mnt-lower | APNIC-HM |
| last-modified | 2009-09-29T05:34:08Z |
| source | APNIC |
role APNIC Hostmaster
| role | APNIC Hostmaster |
|---|---|
| address | PO Box 3646 South Brisbane QLD 4101 |
| country | AU |
| phone | +61 7 3858 3100 |
| fax-no | +61 7 3858 3199 |
| admin-c | AMS11-AP |
| tech-c | AH256-AP |
| nic-hdl | HM20-AP |
| remarks | Administrator for APNIC |
| notify | |
| mnt-by | MAINT-APNIC-AP |
| last-modified | 2026-08-26T00:40:00Z |
| source | APNIC |
as-block AS131584 - AS131639
| as-block | |
|---|---|
| descr | TWNIC-TW-4-byte-AS-BLOCK1 These AS numbers are further assigned by TWNIC to TWNIC members |
| country | TW |
| admin-c | TWA2-AP |
| tech-c | TWA2-AP |
| mnt-by | MAINT-TW-TWNIC |
| mnt-lower | MAINT-TW-TWNIC |
| last-modified | 2025-02-11T03:29:09Z |
| source | APNIC |
role TWNIC Whois Administrator
| role | TWNIC Whois Administrator |
|---|---|
| address | Taiwan Network Information Center 3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei, Taiwan, 105 |
| country | TW |
| phone | +886-2-25289696 |
| fax-no | +886-2-25287756 |
| admin-c | ck373-AP |
| tech-c | TW922-AP NS10-AP |
| nic-hdl | TWA2-AP |
| notify | |
| mnt-by | MAINT-TW-TWNIC |
| last-modified | 2020-01-02T03:54:20Z |
| source | APNIC |
aut-num AS131609
| aut-num | |
|---|---|
| as-name | YUANCHENG-AS-TW |
| descr | Yuan Cheng Co., Ltd. 2F.-6, Aly. 6, Ln. 256, Sec. 2, Xitun Rd., Xitun Dist., Taichung City 407417 , Taiwan (R.O.C.) |
| country | TW |
| admin-c | TR660-AP |
| tech-c | TR660-AP |
| mnt-by | MAINT-TW-TWNIC |
| mnt-irt | IRT-YUANCHENG-TW |
| import | from AS134823 action pref=100; accept ANY from AS10133 action pref=99; accept ANY |
| export | |
| default | to AS134823 action pref=10; networks ANY |
| last-modified | 2026-03-09T02:14:33Z |
| source | APNIC |
irt IRT-YUANCHENG-TW
| irt | IRT-YUANCHENG-TW |
|---|---|
| address | Yuan Cheng Co., Ltd. 2F.-6, Aly. 6, Ln. 256, Sec. 2, Xitun Rd., Xitun Dist., Taichung City 407417, Taiwan (R.O.C.) |
| phone | +886937064595 |
| abuse-mailbox | |
| admin-c | TR660-AP |
| tech-c | TR660-AP |
| remarks | (oid:YUANCHENG) |
| auth | # Filtered |
| last-modified | 2026-07-16T02:54:46Z |
| source | APNIC |
| mnt-by | MAINT-TW-TWNIC |
role TWNIC ROLE-YUANCHENG
| role | TWNIC ROLE-YUANCHENG |
|---|---|
| nic-hdl | TR660-AP |
| address | Yuan Cheng Co., Ltd. 2F.-6, Aly. 6, Ln. 256, Sec. 2, Xitun Rd., Xitun Dist., Taichung City 407417, Taiwan (R.O.C.) |
| country | TW |
| phone | +886937064595 |
| abuse-mailbox | |
| admin-c | SY3193-AP |
| tech-c | SY3193-AP |
| remarks | (hid:SY2602100A-TW) |
| last-modified | 2026-02-10T06:59:27Z |
| source | APNIC |
| mnt-by | MAINT-TW-TWNIC |
as-block: AS131072 - AS132095 descr: APNIC 32-bit ASN block remarks: These AS numbers are further assigned by APNIC remarks: to APNIC members and end-users in the APNIC region admin-c: HM20-AP tech-c: HM20-AP mnt-by: APNIC-HM mnt-lower: APNIC-HM last-modified: 2009-09-29T05:34:08Z source: APNIC role: APNIC Hostmaster address: PO Box 3646 address: South Brisbane address: QLD 4101 country: AU phone: +61 7 3858 3100 fax-no: +61 7 3858 3199 e-mail: [email protected] admin-c: AMS11-AP tech-c: AH256-AP nic-hdl: HM20-AP remarks: Administrator for APNIC notify: [email protected] mnt-by: MAINT-APNIC-AP last-modified: 2026-08-26T00:40:00Z source: APNIC as-block: AS131584 - AS131639 descr: TWNIC-TW-4-byte-AS-BLOCK1 descr: These AS numbers are further assigned by TWNIC descr: to TWNIC members country: TW admin-c: TWA2-AP tech-c: TWA2-AP mnt-by: MAINT-TW-TWNIC mnt-lower: MAINT-TW-TWNIC last-modified: 2025-02-11T03:29:09Z source: APNIC role: TWNIC Whois Administrator address: Taiwan Network Information Center address: 3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., address: Taipei, Taiwan, 105 country: TW phone: +886-2-25289696 fax-no: +886-2-25287756 e-mail: [email protected] admin-c: ck373-AP tech-c: TW922-AP tech-c: NS10-AP nic-hdl: TWA2-AP notify: [email protected] mnt-by: MAINT-TW-TWNIC last-modified: 2020-01-02T03:54:20Z source: APNIC aut-num: AS131609 as-name: YUANCHENG-AS-TW descr: Yuan Cheng Co., Ltd. descr: 2F.-6, Aly. 6, Ln. 256, Sec. 2, Xitun Rd., Xitun Dist., Taichung City 407417 , Taiwan (R.O.C.) country: TW admin-c: TR660-AP tech-c: TR660-AP mnt-by: MAINT-TW-TWNIC mnt-irt: IRT-YUANCHENG-TW import: from AS134823 action pref=100; accept ANY import: from AS10133 action pref=99; accept ANY export: to AS134823 announce AS131609 export: to AS10133 announce AS131609 default: to AS134823 action pref=10; networks ANY last-modified: 2026-03-09T02:14:33Z source: APNIC irt: IRT-YUANCHENG-TW address: Yuan Cheng Co., Ltd. address: 2F.-6, Aly. 6, Ln. 256, Sec. 2, Xitun Rd., Xitun Dist., Taichung City 407417, Taiwan (R.O.C.) phone: +886937064595 e-mail: [email protected] abuse-mailbox: [email protected] admin-c: TR660-AP tech-c: TR660-AP remarks: (oid:YUANCHENG) auth: # Filtered last-modified: 2026-07-16T02:54:46Z source: APNIC mnt-by: MAINT-TW-TWNIC role: TWNIC ROLE-YUANCHENG nic-hdl: TR660-AP address: Yuan Cheng Co., Ltd. address: 2F.-6, Aly. 6, Ln. 256, Sec. 2, Xitun Rd., Xitun Dist., Taichung City 407417, Taiwan (R.O.C.) country: TW phone: +886937064595 e-mail: [email protected] abuse-mailbox: [email protected] admin-c: SY3193-AP tech-c: SY3193-AP remarks: (hid:SY2602100A-TW) last-modified: 2026-02-10T06:59:27Z source: APNIC mnt-by: MAINT-TW-TWNIC