Home ASN LookupAS1659

AS1659 ERX-TANET-ASN1 Taiwan Academic Network TANet Information Center

🇹🇼

Org handle: A91BDB29

Taiwan Academic Network (TANet) Information Center

APNICallocated

Announced Prefixes (BGP)

358total

356 IPv42 IPv6

IPv4 Addresses

Allocated (RIR)5.2M

Announced (BGP)7.6M

IPv6 Addresses

Allocated (RIR)7.9×10²⁸

Announced (BGP)9.9×10²⁸

Prefix Limit (IPv4)

10,000

Prefix Limit (IPv6)

Country

🇹🇼 TW

RIR

APNIC

Status

allocated

Allocated

2002-08-01

Announced Prefixes

(BGP)358

Prefix	RPKI	IRR	Last Seen
120.96.0.0/11	Valid	APNIC	2026-10-11
120.96.144.0/20	Invalid	-	2026-10-11
120.96.160.0/19	Invalid	-	2026-10-11
120.96.192.0/20	Invalid	-	2026-10-11
120.96.208.0/20	Invalid	-	2026-10-11
120.96.224.0/20	Invalid	-	2026-10-11
120.107.0.0/16	Valid	-	2026-10-11
120.107.0.0/18	Valid	-	2026-10-11
120.108.0.0/16	Valid	-	2026-10-11
120.108.56.0/21	Valid	-	2026-10-11

1-10 of 358

1 / 36

Allocated Prefixes

(RIR)42

Prefix	Country	RIR	Status
120.96.0.0/11	🇹🇼 TW	APNIC	allocated
134.208.0.0/16	🇹🇼 TW	APNIC	allocated
140.92.0.0/16	🇹🇼 TW	APNIC	allocated
140.110.0.0/15	🇹🇼 TW	APNIC	assigned
140.128.0.0/13	🇹🇼 TW	APNIC	assigned
140.128.0.0/16	🇹🇼 TW	APNIC	allocated
140.132.0.0/16	🇹🇼 TW	APNIC	allocated
140.134.0.0/16	🇹🇼 TW	APNIC	allocated
140.135.0.0/16	🇹🇼 TW	APNIC	allocated
140.136.0.0/15	🇹🇼 TW	APNIC	allocated

1-10 of 42

1 / 5

All 358 announced prefixes of AS1659 →

BGP Neighbours

(seen in AS paths)

Upstreams (3)

Networks AS1659 hands its own prefixes to: transit providers, or peers at an exchange.

AS7539TWAREN TW National Center For High Performance Computing187
AS3462HINET Data Communication Business Group134
AS17717MOECC IPV6 Ministry Of Education Computer Center Taipei, Taiwan39

ASPA

No ASPA

External Links

APNIC Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS1659 should publish an ASPA object
IPv4 transfers in the APNIC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/1659

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/1659" | jq