AS9920 — IMPROVE SYSTEM TECHNOLOGY CO.
AS Name: ISTVC-AS-TW
Description: IMPROVE SYSTEM TECHNOLOGY CO., LTD. 19F-2., No. 37, Sec. 2, Sanmin Rd., Banqiao Dist., New Taipei City 220
Registry: APNIC
aut-num: AS9920
country: TW
as-name: ISTVC-AS-TW
admin-c: TR413-AP
tech-c: TR413-AP
abuse-c: TR413-AP
mnt-irt: IRT-ISTVC-TW
descr: IMPROVE SYSTEM TECHNOLOGY CO., LTD.
descr: 19F-2., No. 37, Sec. 2, Sanmin Rd., Banqiao Dist., New Taipei City 220
default: to AS41051 action pref=4; networks ANY
default: to AS20473 action pref=2; networks ANY
export: to AS41051 announce AS9920
export: to AS20473 announce AS9920
import: from AS41051 accept ANY
import: from AS20473 accept ANY
remarks: (oid:ISTVC)
last-modified: 2026-01-09T09:51:57Z
source: APNIC
mnt-by: MAINT-TW-TWNIC
Direct Membership
Macros that directly list AS9920 as a member:
AS-HINET(364 members)
Expanded Membership
All macros containing AS9920 (directly or via nested macros): 74
Show 74 macros
AS-HINET(364 ASNs)
AS-TTK(36,818 ASNs)
AS702:AS-SE-CUSTOMER(37,142 ASNs)
AS5413:AS-ROUTE-SERVER-DE-CIX(39,681 ASNs)
AS702:AS-CUSTOMER(43,022 ASNs)
AS1273:AS-CWW(59,499 ASNs)
AS-CW(67,352 ASNs)
AS-SEABONECUSTEU(69,169 ASNs)
AS-SEABONE(71,409 ASNs)
AS-DECIX-PMO-V6(72,294 ASNs)
AS25083:AS-DECIX-PMO-V6(72,294 ASNs)
AS-DECIX-PMO(72,297 ASNs)
AS25083:AS-DECIX-PMO(72,297 ASNs)
AS-EBONE(73,672 ASNs)
AS-ST1-UPSTREAMS(73,733 ASNs)
AS-DECIX-IST(73,942 ASNs)
AS20715:AS-DECIX-IST(73,942 ASNs)
AS-PL-IX(74,048 ASNs)
AS-PLIX(74,048 ASNs)
AS-IX(76,712 ASNs)
AS-SPEED-IX(76,712 ASNs)
AS-1-IX(79,814 ASNs)
AS31561:AS-MEMBERS-AMS(79,814 ASNs)
AS31561:AS-MEMBERS(79,895 ASNs)
AS-STOLON-PEERING(79,897 ASNs)
AS-HOPUS(80,866 ASNs)
AS-DATAIX(82,325 ASNs)
AS-DATAIX-UA(82,325 ASNs)
AS-10VPN-PEERS(82,586 ASNs)
AS-1-IX-WAW(82,799 ASNs)
AS47200:AS-NIXCZ-RSCLIENTS(83,073 ASNs)
AS24971:AS-MAI-NIX-PEER(83,081 ASNs)
AS3326:AS-PEERS-UA(83,796 ASNs)
AS3326:AS-UA(83,796 ASNs)
AS-GLOBEINTERNET(84,477 ASNs)
AS-GLOBEINTERNET-CLIENTS(84,477 ASNs)
AS51706:AS-MEMBERS(84,578 ASNs)
AS-1-IX-WAW-V6(84,590 ASNs)
AS39801:AS-IIXP-PEERS(84,811 ASNs)
AS39801:AS-MULTIPASS-PEERS(84,811 ASNs)
AS-KLNK-IX(85,102 ASNs)
AS-NL-IX-RS(85,102 ASNs)
AS-FRANCEIX-PAR(85,330 ASNs)
AS-TELIANETEU-V6(85,444 ASNs)
AS1299:AS-TWELVE99-EU-V6(85,444 ASNs)
AS-TELIANETEU(85,632 ASNs)
AS1299:AS-TWELVE99-EU-V4(85,632 ASNs)
AS-TELIANETNA(86,938 ASNs)
AS1299:AS-TWELVE99-NA-V4(86,938 ASNs)
AS-TELIANETNA-V6(86,952 ASNs)
AS1299:AS-TWELVE99-NA-V6(86,952 ASNs)
AS-1-IX-V6(87,628 ASNs)
AS-SOX(90,571 ASNs)
AS59900:AS-B-IX-PARTNERS(90,888 ASNs)
AS-VIX-RS(90,892 ASNs)
AS-VIX-RS-V6(91,142 ASNs)
AS216369:AS-IX(91,206 ASNs)
AS-TELIANET-V6(92,705 ASNs)
AS1299:AS-TWELVE99-V6(92,705 ASNs)
AS-TELIANET(92,989 ASNs)
AS1299:AS-TWELVE99-V4(92,989 ASNs)
AS-BCIX(93,003 ASNs)
AS16374:AS-BCIX-ALL(93,003 ASNs)
AS1299:AS-TWELVE99(93,076 ASNs)
AS-TIXZH(94,757 ASNs)
AS-DECIX(96,509 ASNs)
AS-NFON-DECIX-PEERS-V4(96,509 ASNs)
AS-NFON-DECIX-PEERS-V6(96,509 ASNs)
AS6695:AS-DECIX-FRA(96,509 ASNs)
AS-ST1-IXPS(96,670 ASNs)
AS-DECIX-V6(100,277 ASNs)
AS6695:AS-DECIX-FRA-V6(100,277 ASNs)
AS-CLOUD-IX-PRO(100,911 ASNs)
AS-MERKEL-PEERS(100,925 ASNs)
Upstream AS Paths
15 unique paths, avg length 2.7
AS Looking Glass
Upstream paths (matching graph above)
AS9920 IPv4 Address Subnets (1)
| 103.173.94.0/24 | 🇹🇼 TW | Vultr Customer Route | ISTVC-AS-TW |