4747 UNSPECIFIED Taiwan Telecommunication Network Services Co. Ltd.
Adjacency: 5 Upstream: 3 Downstream: 2
Upstream Adjacent AS list
AS10026 ANC Asia Netcom Corporation
AS4637 REACH Reach Network Border AS
AS9505 TWGATE-AP Taiwan Internet Gateway
Downstream Adjacent AS list
AS18421 TAISHINBANK-AS-T Taishin International Bank
AS18413 GBTC-TW Great Taipei Broadband Company Ltd.
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 597 AS4747 ORG+TRN Originate: 348160 /13.59 Transit: 20992 /17.64 UNSPECIFIED Taiwan Telecommunication Network Services Co. Ltd.
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 1487 AS4747 UNSPECIFIED Taiwan Telecommunication Net 33 14 6 25 8 24.24% Prefix AS Path Aggregation Suggestion 61.57.0.0/19 4637 4747 124.108.128.0/18 4637 4747 + Announce - aggregate of 124.108.128.0/19 (4637 4747) and 124.108.160.0/19 (4637 4747) 124.108.128.0/19 4637 4747 - Withdrawn - aggregated with 124.108.160.0/19 (4637 4747) 124.108.160.0/19 4637 4747 - Withdrawn - aggregated with 124.108.128.0/19 (4637 4747) 202.132.0.0/19 4637 9505 4747 4747 4747 202.132.32.0/19 4637 9505 4747 202.132.64.0/18 4637 9505 4747 202.132.64.0/19 4637 10026 4747 202.132.96.0/19 4637 9505 4747 4747 4747 202.132.128.0/18 4637 10026 4747 + Announce - aggregate of 202.132.128.0/19 (4637 10026 4747) and 202.132.160.0/19 (4637 10026 4747) 202.132.128.0/19 4637 10026 4747 - Withdrawn - aggregated with 202.132.160.0/19 (4637 10026 4747) 202.132.160.0/19 4637 10026 4747 - Withdrawn - aggregated with 202.132.128.0/19 (4637 10026 4747) 202.132.192.0/18 4637 9505 4747 202.132.192.0/18 4637 10026 4747 + Announce - aggregate of 202.132.192.0/19 (4637 10026 4747) and 202.132.224.0/19 (4637 10026 4747) 202.132.192.0/19 4637 10026 4747 - Withdrawn - aggregated with 202.132.224.0/19 (4637 10026 4747) 202.132.224.0/19 4637 10026 4747 - Withdrawn - aggregated with 202.132.192.0/19 (4637 10026 4747) 202.145.32.0/19 4637 4747 202.145.64.0/18 4637 4747 4747 4747 202.145.128.0/17 4637 4747 203.211.0.0/19 4637 4747 210.17.0.0/17 4637 4747 210.63.128.0/18 4637 4747 + Announce - aggregate of 210.63.128.0/19 (4637 4747) and 210.63.160.0/19 (4637 4747) 210.63.128.0/19 4637 4747 - Withdrawn - aggregated with 210.63.160.0/19 (4637 4747) 210.63.160.0/19 4637 4747 - Withdrawn - aggregated with 210.63.128.0/19 (4637 4747) 210.67.144.0/20 4637 4747 4747 4747 210.67.192.0/19 4637 4747 4747 4747 210.192.0.0/18 4637 4747 4747 4747 + Announce - aggregate of 210.192.0.0/19 (4637 4747 4747 4747) and 210.192.32.0/19 (4637 4747 4747 4747) 210.192.0.0/19 4637 4747 4747 4747 - Withdrawn - aggregated with 210.192.32.0/19 (4637 4747 4747 4747) 210.192.32.0/19 4637 4747 4747 4747 - Withdrawn - aggregated with 210.192.0.0/19 (4637 4747 4747 4747) 210.192.128.0/17 4637 4747 4747 4747 + Announce - aggregate of 210.192.128.0/18 (4637 4747 4747 4747) and 210.192.192.0/18 (4637 4747 4747 4747) 210.192.128.0/19 4637 4747 4747 4747 - Withdrawn - aggregated with 210.192.160.0/19 (4637 4747 4747 4747) 210.192.160.0/19 4637 4747 4747 4747 - Withdrawn - aggregated with 210.192.128.0/19 (4637 4747 4747 4747) 210.192.192.0/19 4637 4747 4747 4747 - Withdrawn - aggregated with 210.192.224.0/19 (4637 4747 4747 4747) 210.192.224.0/19 4637 4747 4747 4747 - Withdrawn - aggregated with 210.192.192.0/19 (4637 4747 4747 4747) 210.208.96.0/19 4637 4747 210.208.192.0/18 4637 4747 210.243.64.0/19 4637 4747 4747 4747 210.243.96.0/19 4637 4747 211.79.0.0/19 4637 4747
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS4747 24 More Specifics 31 Total Advertisements UNSPECIFIED Taiwan Telecommunication Network Services Co. Ltd.
61.57.0.0/19 61.56.0.0/13
124.108.128.0/19 124.108.128.0/18
124.108.160.0/19 124.108.128.0/18
202.132.0.0/19 202.132.0.0/16
202.132.32.0/19 202.132.0.0/16
202.132.64.0/18 202.132.0.0/16
202.132.64.0/19 202.132.0.0/16
202.132.96.0/19 202.132.0.0/16
202.132.128.0/19 202.132.0.0/16
202.132.160.0/19 202.132.0.0/16
202.132.192.0/18 202.132.0.0/16
210.63.128.0/19 210.60.0.0/14
210.63.160.0/19 210.60.0.0/14
210.67.144.0/20 210.64.0.0/14
210.67.192.0/19 210.64.0.0/14
210.192.0.0/19 210.192.0.0/18
210.192.32.0/19 210.192.0.0/18
210.192.128.0/19 210.192.128.0/17
210.192.160.0/19 210.192.128.0/17
210.192.192.0/19 210.192.128.0/17
210.192.224.0/19 210.192.128.0/17
210.243.64.0/19 210.242.0.0/15
210.243.96.0/19 210.242.0.0/15
211.79.0.0/19 211.76.0.0/14
whois: 402603
IANA has recorded AS4747 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS4747\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS4608 - AS4865'
as-block: AS4608 - AS4865
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: APNIC-HM
last-modified: 2019-05-20T03:52:26Z
source: APNIC
role: APNIC Hostmaster
address: 6 Cordelia Street
address: South Brisbane
address: QLD 4101
country: AU
phone: +61 7 3858 3100
fax-no: +61 7 3858 3199
e-mail: helpdesk@apnic.net
admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC
% Information related to 'AS4747'
% Abuse contact for 'AS4747' is 'nickchang@taiwanmobile.com'
aut-num: AS4747
as-name: TFN-TW-TTN
descr: TTN ASN merged by TFN
descr: Taiwan Fixed Network Co.Ltd.
descr: No. 172-1, Sec. 2, Ji-Lung Rd.,
descr: Taipei City 106, Taiwan
country: TW
import: from AS9924 action pref=100; accept ANY
export: to AS9924 announce ANY
admin-c: IP11-AP
tech-c: IP11-AP
abuse-c: AT939-AP
notify: ipsd@taiwanmobile.com
mnt-lower: MAINT-TFN-TW
mnt-by: MAINT-TW-TWNIC
mnt-irt: IRT-PROFOND-TW
last-modified: 2025-11-06T09:05:49Z
source: APNIC
irt: IRT-PROFOND-TW
address: Taiwan Fixed Network CO.,LTD.
address: 15 F., No. 172-1, Sec. 2, Keelung Rd., Da-an Dist.
address: Taipei City
phone: +886-9-2244-1147
e-mail: nickchang@taiwanmobile.com
abuse-mailbox: nickchang@taiwanmobile.com
admin-c: TR513-AP
tech-c: TR513-AP
remarks: (oid:PROFOND)
mnt-by: MAINT-TW-TWNIC
last-modified: 2025-11-06T07:46:03Z
source: APNIC
auth: # Filtered
role: ABUSE TWNICAP
country: ZZ
address: 3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan
phone: +000000000
e-mail: hostmaster@twnic.tw
admin-c: TWA2-AP
tech-c: TWA2-AP
nic-hdl: AT939-AP
remarks: Generated from irt object IRT-TWNIC-AP
remarks: hostmaster@twnic.tw was validated on 2025-05-23
abuse-mailbox: hostmaster@twnic.tw
mnt-by: APNIC-ABUSE
last-modified: 2025-05-23T00:02:10Z
source: APNIC
role: TTN IP-Team
address: Taiwan Mobile Co., Ltd.
address: Network Assurance & Technical Support Div.
address: # Ex TTN merged
address: 8F.,No 172-1, Sec 2, Ji-Lung RD
address: Taipei 106 Taiwan
country: TW
phone: +886-2-6638-6888
fax-no: +886-2-6639-0607
e-mail: whois@ttn.com.tw
admin-c: IP11-AP
tech-c: IP11-AP
nic-hdl: IP11-AP
remarks: ### Crime, Abuse , Spam , Security ###
remarks: CSC TEL : 0809-000-188
remarks: CSC TEL : +886-2-4066-0357
remarks: abuse@tfn.com.tw
remarks: abuse@tfn.com.tw
remarks: ### Crime, Abuse , Spam , Security ###
mnt-by: MAINT-TTN-AP
last-modified: 2011-12-06T00:10:19Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)