17923 CHINATELECOM-NMG-AS-AP asn for Neimenggu Provincial Net of CT
Adjacency: 1 Upstream: 1 Downstream: 0
Upstream Adjacent AS list
AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 553 AS17923 ORIGIN Originate: 385792 /13.44 Transit: 0 /0.00 CHINATELECOM-NMG-AS-AP asn for Neimenggu Provincial Net of CT
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 % 1287 AS17923 CHINATELECOM-NMG-AS-AP asn for Neimenggu 16 13 3 6 10 62.50% Prefix AS Path Aggregation Suggestion 121.56.0.0/15 4637 4134 17923 121.56.32.0/19 4637 4134 17923 - Withdrawn - matching aggregate 121.56.0.0/15 4637 4134 17923 121.56.96.0/19 4637 4134 17923 - Withdrawn - matching aggregate 121.56.0.0/15 4637 4134 17923 121.56.208.0/20 4637 4134 17923 - Withdrawn - matching aggregate 121.56.0.0/15 4637 4134 17923 121.57.96.0/19 4637 4134 17923 - Withdrawn - matching aggregate 121.56.0.0/15 4637 4134 17923 123.178.0.0/15 4637 4134 17923 + Announce - aggregate of 123.178.0.0/16 (4637 4134 17923) and 123.179.0.0/16 (4637 4134 17923) 123.178.0.0/16 4637 4134 17923 - Withdrawn - aggregated with 123.179.0.0/16 (4637 4134 17923) 123.179.0.0/16 4637 4134 17923 - Withdrawn - aggregated with 123.178.0.0/16 (4637 4134 17923) 218.30.178.0/24 4637 4134 17923 219.147.96.0/19 4637 4134 17923 219.148.160.0/19 4637 4134 17923 + Announce - aggregate of 219.148.160.0/20 (4637 4134 17923) and 219.148.176.0/20 (4637 4134 17923) 219.148.160.0/20 4637 4134 17923 - Withdrawn - aggregated with 219.148.176.0/20 (4637 4134 17923) 219.148.176.0/20 4637 4134 17923 - Withdrawn - aggregated with 219.148.160.0/20 (4637 4134 17923) 219.148.176.0/23 4637 4134 17923 - Withdrawn - matching aggregate 219.148.176.0/20 4637 4134 17923 222.74.0.0/16 4637 4134 17923 + Announce - aggregate of 222.74.0.0/17 (4637 4134 17923) and 222.74.128.0/17 (4637 4134 17923) 222.74.0.0/17 4637 4134 17923 - Withdrawn - aggregated with 222.74.128.0/17 (4637 4134 17923) 222.74.32.0/19 4637 4134 17923 - Withdrawn - matching aggregate 222.74.0.0/17 4637 4134 17923 222.74.64.0/20 4637 4134 17923 - Withdrawn - matching aggregate 222.74.0.0/17 4637 4134 17923 222.74.128.0/17 4637 4134 17923 - Withdrawn - aggregated with 222.74.0.0/17 (4637 4134 17923)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS17923 13 More Specifics 14 Total Advertisements CHINATELECOM-NMG-AS-AP asn for Neimenggu Provincial Net of CT
121.56.32.0/19 121.56.0.0/15
121.56.208.0/20 121.56.0.0/15
123.178.0.0/16 123.178.0.0/15
123.179.0.0/16 123.178.0.0/15
218.30.178.0/24 218.30.0.0/15
219.147.96.0/19 219.144.0.0/14
219.147.96.0/22 219.144.0.0/14
219.148.160.0/20 219.148.0.0/16
219.148.176.0/20 219.148.0.0/16
222.74.0.0/17 222.74.0.0/16
222.74.32.0/19 222.74.0.0/16
222.74.64.0/20 222.74.0.0/16
222.74.128.0/17 222.74.0.0/16
whois: 402332
IANA has recorded AS17923 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS17923\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS17653 - AS18431'
as-block: AS17653 - AS18431
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: 2019-01-08T23:19:07Z
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 'AS17923'
% Abuse contact for 'AS17923' is 'anti-spam@chinatelecom.cn'
aut-num: AS17923
as-name: CHINATELECOM-NMG-AS-AP
descr: asn for Neimenggu Provincial Net of CT
country: CN
remarks: For routing problems with this ASN contact the admin-c
admin-c: CH93-AP
tech-c: YY246-AP
abuse-c: AC1573-AP
notify: yuyuan@cndata.com
mnt-lower: MAINT-CHINANET
mnt-routes: MAINT-CHINANET
mnt-by: APNIC-HM
mnt-irt: IRT-CHINANET-CN
last-modified: 2021-06-15T08:06:39Z
source: APNIC
irt: IRT-CHINANET-CN
address: No.31 ,jingrong street,beijing
address: 100032
e-mail: anti-spam@chinatelecom.cn
abuse-mailbox: anti-spam@chinatelecom.cn
admin-c: CH93-AP
tech-c: CH93-AP
auth: # Filtered
remarks: anti-spam@chinatelecom.cn was validated on 2025-11-13
mnt-by: MAINT-CHINANET
last-modified: 2026-03-13T07:12:20Z
source: APNIC
role: ABUSE CHINANETCN
country: ZZ
address: No.31 ,jingrong street,beijing
address: 100032
phone: +000000000
e-mail: anti-spam@chinatelecom.cn
admin-c: CH93-AP
tech-c: CH93-AP
nic-hdl: AC1573-AP
remarks: Generated from irt object IRT-CHINANET-CN
remarks: anti-spam@chinatelecom.cn was validated on 2025-11-13
abuse-mailbox: anti-spam@chinatelecom.cn
mnt-by: APNIC-ABUSE
last-modified: 2025-11-13T14:15:15Z
source: APNIC
person: Chinanet Hostmaster
nic-hdl: CH93-AP
e-mail: anti-spam@chinatelecom.cn
address: No.31 ,jingrong street,beijing
address: 100032
phone: +86-10-58501724
fax-no: +86-10-58501724
country: CN
mnt-by: MAINT-CHINANET
last-modified: 2022-02-28T06:53:44Z
source: APNIC
person: yuan yu
nic-hdl: YY246-AP
e-mail: yuyuan@cndata.com
address: NO.31,jin-rong-jie ,Beijing
phone: +86-10-66501167
fax-no: +86-10-66501167
country: CN
mnt-by: MAINT-NEW
last-modified: 2008-09-04T07:29:20Z
source: APNIC
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