AS9505
Chunghwa Telecom Co., Ltd. — cht.com.tw
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Summary
| Country |
 Taiwan
|
| Organization | Chunghwa Telecom Co., Ltd. |
| Domain | cht.com.tw |
| Number of IPv4 | 31,232 |
| Number of IPv6 | 4.0735× 1031 |
| AS Type | ISP |
| Registry | APNIC |
| Allocated | January 01, 1970 (about 56 years ago) |
| Updated | June 10, 2020 (about 5 years ago) |
IP Ranges
AS9505 announces 34 IPv4 ranges and 10 IPv6 ranges.
That's a total of 31,232 IPv4 addresses and 4.0735× 1031 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 66.171.112.0/21 |
CHUNGHWA TELECOM TWGATE
|
2,048 | ARIN | REASSIGNMENT |
| 175.41.48.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.48.0/20 |
Chunghwa Telecom CO.,LTD.
|
4,096 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.49.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.50.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.51.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.52.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.54.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.55.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.56.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.57.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.58.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.61.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.62.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.41.63.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.111.224.0/20 |
Chunghwa Telecom CO.,LTD.
|
4,096 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.111.235.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.111.236.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.111.237.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.111.238.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.111.239.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 175.111.240.0/21 |
Chunghwa Telecom CO.,LTD.
|
2,048 | TWNIC | ASSIGNED NON-PORTABLE |
| 203.78.176.0/20 |
Chunghwa Telecom CO.,LTD.
|
4,096 | TWNIC | ASSIGNED NON-PORTABLE |
| 203.78.179.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 203.78.180.0/24 |
International Business Group,
|
256 | APNIC | ALLOCATED PORTABLE |
| 203.78.182.0/24 |
International Business Group,
|
256 | APNIC | ALLOCATED PORTABLE |
| 203.160.224.0/20 |
Chunghwa Telecom CO.,LTD.
|
4,096 | TWNIC | ASSIGNED NON-PORTABLE |
| 203.160.231.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 203.160.232.0/24 |
International Business Group,
|
256 | APNIC | ALLOCATED PORTABLE |
| 203.160.233.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 203.160.235.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| 208.70.200.0/21 |
 John Shieh
|
2,048 | ARIN | REASSIGNMENT |
| 220.128.48.0/21 |
Chunghwa Telecom CO.,LTD.
|
2,048 | TWNIC | ASSIGNED NON-PORTABLE |
| 220.128.48.0/24 |
Chunghwa Telecom CO.,LTD.
|
256 | TWNIC | ASSIGNED NON-PORTABLE |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2001:b200::/32 |
Hinet Taiwan
|
7.9228× 1028 | APNIC | ALLOCATED PORTABLE |
| 2001:b200::/23 |
Hinet Taiwan
|
4.0565× 1031 | APNIC | ALLOCATED PORTABLE |
| 2001:b200:600::/40 |
Hinet Taiwan
|
3.0949× 1026 | APNIC | ALLOCATED PORTABLE |
| 2001:b200:1e00::/40 |
Hinet Taiwan
|
3.0949× 1026 | APNIC | ALLOCATED PORTABLE |
| 2001:b200:1f00::/40 |
Hinet Taiwan
|
3.0949× 1026 | APNIC | ALLOCATED PORTABLE |
| 2001:b200:2000::/35 |
Hinet Taiwan
|
9.9035× 1027 | APNIC | ALLOCATED PORTABLE |
| 2001:b200:2200::/40 |
Hinet Taiwan
|
3.0949× 1026 | APNIC | ALLOCATED PORTABLE |
| 2001:b200:3e00::/40 |
Hinet Taiwan
|
3.0949× 1026 | APNIC | ALLOCATED PORTABLE |
| 2001:b200:3f00::/40 |
Hinet Taiwan
|
3.0949× 1026 | APNIC | ALLOCATED PORTABLE |
| 2606:c00::/32 |
Chunghwa Telecom Global, INC
|
7.9228× 1028 | ARIN | ALLOCATION |
Peers
AS9505 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.
Upstreams
AS9505 connects to the global Internet via at least 6 upstream providers. In this setup, AS9505 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.
Downstreams
AS9505 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS9505's role in extending Internet access beyond its own infrastructure.