All ASNs

Autonomous System details for AS9505

AS9505

Chunghwa Telecom Co., Ltd. • cht.com.tw

AS9505 — Chunghwa Telecom Co., Ltd.

AS Name

TWGATE-AP

Country

Taiwan (TW)

Website

cht.com.tw

Number of IPv4

31,232

Number of IPv6

1.7 × 10²⁹

ASN type

ISP

Status

Allocated

Registry

APNIC

Allocated

March 24, 1999

Last updated

June 10, 2020

IP Ranges

34 IPv4 prefixes, 9 IPv6 prefixes

Prefix	Company	Number of IPs
66.171.112.0/21	CHUNGHWA TELECOM TWGATE	2,048
175.41.48.0/20	International Business Group,	4,096
175.41.48.0/24	International Business Group,	256
175.41.49.0/24	Chunghwa Telecom International Business Group	256
175.41.50.0/24	Chunghwa Telecom International Business Group	256
175.41.51.0/24	Chunghwa Telecom International Business Group	256
175.41.52.0/24	Chunghwa Telecom International Business Group	256
175.41.54.0/24	Chunghwa Telecom International Business Group	256
175.41.55.0/24	Chunghwa Telecom International Business Group	256
175.41.56.0/24	Chunghwa Telecom International Business Group	256
175.41.57.0/24	Chunghwa Telecom International Business Group	256
175.41.58.0/24	Chunghwa Telecom International Business Group	256
175.41.61.0/24	Chunghwa Telecom International Business Group	256
175.41.62.0/24	Chunghwa Telecom International Business Group	256
175.41.63.0/24	Chunghwa Telecom International Business Group	256
175.111.224.0/20	Chunghwa Telecom International Business Group	4,096
175.111.235.0/24	Chunghwa Telecom International Business Group	256
175.111.236.0/24	Chunghwa Telecom International Business Group	256
175.111.237.0/24	Chunghwa Telecom International Business Group	256
175.111.238.0/24	Chunghwa Telecom International Business Group	256
175.111.239.0/24	Chunghwa Telecom International Business Group	256
175.111.240.0/21	Chunghwa Telecom International Business Group	2,048
203.78.176.0/20	Chunghwa Telecom International Business Group	4,096
203.78.179.0/24	Chunghwa Telecom Int???l Business Group	256
203.78.180.0/24	International Business Group,	256
203.78.182.0/24	International Business Group,	256
203.160.224.0/20	Chunghwa Telecom Global, Inc.	4,096
203.160.231.0/24	Chunghwa Telecom International Business Group	256
203.160.232.0/24	International Business Group,	256
203.160.233.0/24	Chunghwa Telecom International Business Group	256
203.160.235.0/24	Chunghwa Telecom International Business Group	256
208.70.200.0/21	John Shieh	2,048
220.128.48.0/21	Chunghwa Telecom Int???l Business Group	2,048
220.128.48.0/24	Chunghwa Telecom Int???l Business Group	256
2001:b200::/32	HiNet Taiwan	7.92 × 10²⁸
2001:b200:600::/40	HiNet Taiwan	3.09 × 10²⁶
2001:b200:1e00::/40	HiNet Taiwan	3.09 × 10²⁶
2001:b200:1f00::/40	HiNet Taiwan	3.09 × 10²⁶
2001:b200:2000::/35	HiNet Taiwan	9.9 × 10²⁷
2001:b200:2200::/40	HiNet Taiwan	3.09 × 10²⁶
2001:b200:3e00::/40	HiNet Taiwan	3.09 × 10²⁶
2001:b200:3f00::/40	HiNet Taiwan	3.09 × 10²⁶
2606:c00::/32	Chunghwa Telecom Global, INC	7.92 × 10²⁸

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS9505

113 peers

AS983 AS1267 AS1280 AS1828 AS2152 AS2381 AS2497 AS2500 AS2516 AS2518 AS2734 AS2856 AS3462 AS3491 AS4134 AS4181 AS4621 AS4637 AS4657 AS4764 AS4766 AS4775 AS4800 AS4826 AS6057 AS6079 AS6453 AS6939 AS7195 AS7473 AS7481 AS7575 AS7693 AS7713 AS8220 AS8359 AS8426 AS8966 AS9002 AS1000 AS17639 AS9680 AS9744 AS9902 AS9930 AS10075 AS10099 AS11164 AS12552 AS13237 AS14537 AS15412 AS16552 AS17433 AS17660 AS17676 AS18106 AS19151 AS20485 AS20940 AS21928 AS23673 AS23764 AS23930 AS23932 AS24482 AS24516 AS30844 AS31500 AS32590 AS33891 AS35280 AS37468 AS38001 AS38880 AS39120 AS39351 AS40065 AS41095 AS45352 AS45430 AS45903 AS48185 AS49544 AS53828 AS55720 AS58453 AS58511 AS58952 AS58955 AS59105 AS59318 AS60068 AS62246 AS63927 AS131642 AS132280 AS132337 AS133424 AS137409 AS138915 AS139901 AS140627 AS140867 AS148968 AS151326 AS153526 AS199524 AS207841 AS215859 AS271253 AS327885 AS398465

AS9505 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS9505

5 upstreams

AS174 AS1299 AS2914 AS3356 AS10133

AS9505 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS9505 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS9505

24 downstreams

AS4780 AS7478 AS7532 AS7533 AS9264 AS9304 AS9416 AS9924 AS10126 AS11414 AS17408 AS17716 AS18047 AS18182 AS18183 AS33717 AS38325 AS45250 AS55547 AS131659 AS131660 AS135062 AS135140 AS208770

AS9505 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.