AS9505 · TW — Chunghwa Telecom Co., Ltd.

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TWGATE-AP · APNIC · TW

Identity source

AS9505 ·

TW Chunghwa Telecom Co., Ltd.

https://rdap.apnic.net/autnum/9505

36IPv4 prefixes

9IPv6 prefixes

31Observed neighbors

RPKIValid: 45 Invalid: 0 Not found: 0 Unknown: 0

Selected local snapshot coverage; not the whole Internet. BGP snapshots: ris-rrc00 11 Oct 00:00 UTC; routeviews2 11 Oct 06:00 UTC; routeviews6 11 Oct 04:00 UTC. Validator: 11 Oct 06:22 UTC. Publication-point issues: 90

Address space details

Overlapping originated prefixes counted once. IPv4 addresses: 24,576

IPv6 addresses: 158456325028528675187087900672

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Observed originated prefixes

These are observed BGP origins, not an inventory of registered allocations or transit reachability.

45 matching prefix–origin pairs. Each pair appears once; source observations are in Details.

Prefix	RPKI	Last observed	Details
66.171.112.0/21	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.48.0/20	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.48.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.49.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.50.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.51.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.52.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.54.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.55.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.56.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.57.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.58.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.61.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.62.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.41.63.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.111.224.0/20	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.111.234.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.111.235.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.111.236.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.111.237.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.111.238.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.111.239.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
175.111.240.0/21	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
203.78.176.0/20	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid
203.78.179.0/24	Valid	11 Oct 06:00 UTC	2 source observations ris-rrc00 · 2026-10-11T00:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-11T06:00:00+00:00 · 1 selected peers · RPKI valid

Next rows

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Observed AS neighbors

31 unique neighbors in the selected local snapshots. This is the available collector dataset, not a complete map of the Internet. Adjacency does not establish upstream service or peering.

31 matching neighbors · 26–31 shown

Network	IPv4/IPv6	Seen in	Last observed	Details
AS40065 · US CNSERVERS - CNSERVERS LLC	IPv4	routeviews2	11 Oct 06:00 UTC	Source observations routeviews2 · IPv4 · 11 Oct 06:00 UTC
AS45250 · TW VOCOM-AP-AS Vocom International Telecommunications AP Area	IPv4, IPv6	ris-rrc00, routeviews2, routeviews6	11 Oct 06:00 UTC	Source observations ris-rrc00 · IPv4 · 11 Oct 00:00 UTC routeviews2 · IPv4 · 11 Oct 06:00 UTC ris-rrc00 · IPv6 · 11 Oct 00:00 UTC routeviews6 · IPv6 · 11 Oct 04:00 UTC
AS45430 · TH ADVANCED WIRELESS NETWORK COMPANY LIMITED	IPv6	ris-rrc00, routeviews6	11 Oct 04:00 UTC	Source observations ris-rrc00 · IPv6 · 11 Oct 00:00 UTC routeviews6 · IPv6 · 11 Oct 04:00 UTC
AS55547 · PH WOODSNET-PH Unit D,E,F,G 28th Floor	IPv4, IPv6	ris-rrc00, routeviews2, routeviews6	11 Oct 06:00 UTC	Source observations ris-rrc00 · IPv4 · 11 Oct 00:00 UTC routeviews2 · IPv4 · 11 Oct 06:00 UTC ris-rrc00 · IPv6 · 11 Oct 00:00 UTC routeviews6 · IPv6 · 11 Oct 04:00 UTC
AS59105 · JP HOMENOC Home NOC Operators Group	IPv6	routeviews6	11 Oct 04:00 UTC	Source observations routeviews6 · IPv6 · 11 Oct 04:00 UTC
AS131660 · TW CHTCDN Data Communication Business Group	IPv4, IPv6	ris-rrc00, routeviews2, routeviews6	11 Oct 06:00 UTC	Source observations ris-rrc00 · IPv4 · 11 Oct 00:00 UTC routeviews2 · IPv4 · 11 Oct 06:00 UTC ris-rrc00 · IPv6 · 11 Oct 00:00 UTC routeviews6 · IPv6 · 11 Oct 04:00 UTC

Previous neighbors

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View observed neighbor graph (up to 15 AS nodes)

Lines mean observed adjacency, with no commercial direction inferred. The table above provides the same evidence and source times.

Showing 14 of 31 matching neighbors, in table sort order, independent of table page.

Peering & locations

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Registry information

APNIC · fetched 11 Oct 02:00 UTC

Resource name: TWGATE-AP
Handle: AS9505
RDAP country: TW
ASN: 9505

Registered organizations

Chunghwa Telecom Co., Ltd.

Registration: 04 Sep 2008 06:40 UTC

Last Changed: 10 Jun 2020 13:05 UTC

Registry contacts and maintainers

MY37-AP · technical
WS31-AP · administrative
IRT-HINET-TW · abuse

Official registry record

Registry source

Allocation statistics

NRO/RIR delegated-extended records describe allocation or assignment ranges. They do not prove a BGP announcement or replace more-specific RDAP registration information. Country is the allocation record’s registration country, not the physical location of every address.

AS9505–AS9505 · apnic · assigned · ASN allocation country: TW · Allocation date: 1999-03-24 — NRO/RIR data · snapshot 10 Oct 00:00 UTC

NRO data and format

Prefix count history

Local observation changes

Only comparable successful snapshots are compared. First imports, changed peer coverage and collection gaps are baselines, not new global routes or withdrawals. RPKI transition history is not available before it has been recorded.

No retained changes are available for this resource.

Retained local prefix-count observations

Separate collector series. Missing rows are not zero. Peer-set changes are separate coverage, not a continuous trend.

Source	Snapshot	Family	Prefixes	Peer coverage
routeviews2	11 Oct 06:00 UTC	IPv4	36	140.192.8.16/IPv4
routeviews2	11 Oct 04:00 UTC	IPv4	36	140.192.8.16/IPv4
routeviews6	11 Oct 04:00 UTC	IPv6	9	2406:840:feed:2::1/IPv6
routeviews2	11 Oct 02:00 UTC	IPv4	36	140.192.8.16/IPv4
routeviews6	11 Oct 02:00 UTC	IPv6	9	2406:840:feed:2::1/IPv6
ris-rrc00	11 Oct 00:00 UTC	IPv6	9	2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00	11 Oct 00:00 UTC	IPv4	36	2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00	10 Oct 16:00 UTC	IPv6	9	2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00	10 Oct 16:00 UTC	IPv4	36	2a00:5884::6/IPv6, 89.234.186.6/IPv4