CNCGROUP-SH

AS17621 · China Unicom Shanghai network · CN · APNIC
2
Upstream providers
18
Downstream customers
929k
v4 addresses
23.8
v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Provider First Seen Last Seen Peers Confidence AF
CHINA169-Backbone
AS4837
2024-09-01
1y 9mo
2026-06-09
179 peers
AS174 AS209 AS260 AS553 AS835 AS999 AS1000 AS1213 AS1299 AS1351 AS2152 AS2914 AS3130 AS3170 AS3257 AS3320 AS3491 AS3549 AS3701 AS4128 AS4181 AS5392 AS5394 AS5580 AS6082 AS6204 AS6424 AS6730 AS6762 AS6830 AS6894 AS7018 AS7594 AS8220 AS8582 AS12956 AS12969 AS13237 AS13786 AS13830 AS14315 AS14537 AS14630 AS15562 AS15692 AS16552 AS17290 AS17350 AS19151 AS19529 AS19754 AS20080 AS20514 AS20811 AS22652 AS23367 AS24482 AS24516 AS28824 AS28917 AS29075 AS29140 AS29504 AS29680 AS30950 AS31510 AS31554 AS31742 AS32590 AS33185 AS33874 AS34549 AS34927 AS35266 AS35426 AS35710 AS36924 AS37271 AS37497 AS37697 AS39122 AS39351 AS40994 AS41073 AS41095 AS47692 AS47957 AS48070 AS49544 AS49605 AS50300 AS50304 AS50877 AS51185 AS51519 AS52468 AS53202 AS53828 AS55222 AS56457 AS57630 AS57821 AS58057 AS59414 AS61049 AS61138 AS61568 AS61832 AS64112 AS64475 AS132825 AS134823 AS136557 AS151326 AS151704 AS197580 AS198150 AS199524 AS206499 AS207841 AS209650 AS212271 AS213151 AS214443 AS216285 AS262462 AS263009 AS264479 AS265721 AS266213 AS271253 AS327804 AS327960 AS328206 AS328840 AS328964 AS398465
v4 v6
CUII
AS9929
2024-09-01
1y 9mo
2026-06-09
163 peers
AS209 AS260 AS924 AS2152 AS3257 AS3320 AS3333 AS3491 AS3549 AS4775 AS5392 AS5580 AS6453 AS6461 AS6730 AS6762 AS6830 AS7018 AS7768 AS8218 AS8529 AS11039 AS12956 AS13781 AS14630 AS14907 AS15605 AS17350 AS19529 AS30950 AS31554 AS32590 AS34927 AS35280 AS39642 AS40864 AS48185 AS48237 AS49434 AS49544 AS49605 AS50628 AS51185 AS52468 AS52873 AS53202 AS56457 AS57866 AS59414 AS60924 AS132884 AS151704 AS197580 AS199524 AS212317 AS216285 AS262462 AS264479 AS266213 AS397131
v4 v6

Customers (18)

Customer Country First Seen Last Seen IPs Peers Confidence AF
AS109
AS109
US 2024-09-01
1y 9mo
2026-06-09 4.6k
60 peers
AS209 AS3549 AS5392 AS30950 AS31554 AS34927 AS41095 AS49544 AS53202 AS199524 AS266213
v4 v6
MSMSL-AS-AP
AS7609
CN 2024-09-01
1y 9mo
2026-06-09 256
51 peers
AS2914 AS3130 AS3320 AS3491 AS4128 AS6082 AS7018 AS14537 AS15562 AS19151 AS24482 AS29140 AS35710 AS37697 AS49544 AS53828 AS64475 AS199524
v4 v6
NovaNetwork
AS9809
CN 2024-09-01
1y 9mo
2026-06-09 20k
28 peers
AS209 AS2914 AS3130 AS3320 AS3491 AS3549 AS4128 AS6082 AS15562 AS19151 AS24482 AS35710 AS37697 AS64475 AS199524
v4 v6
UBSGROUPAG-AS-AP
AS10100
CH 2024-09-01
1y 9mo
2026-06-09 1k
59 peers
AS209 AS1000 AS2152 AS2914 AS3130 AS3320 AS3491 AS3549 AS3701 AS4128 AS5392 AS6082 AS6424 AS7018 AS7594 AS14537 AS15562 AS19151 AS24482 AS30950 AS31554 AS34927 AS35710 AS37697 AS41095 AS49544 AS53202 AS64475 AS199524 AS263009 AS266213 AS271253
v4 v6
CNNIC-DSNET-AP
AS23853
CN 2024-09-01
1y 9mo
2026-06-09 37k
40 peers
AS151704
v4 v6
DMTNET
AS24141
CN 2024-09-01
1y 9mo
2026-06-09 2.6k
27 peers
AS209 AS2914 AS3130 AS3320 AS3491 AS3549 AS4128 AS6082 AS15562 AS19151 AS24482 AS35710 AS37697 AS64475 AS199524
v4 v6
ALIBABA-CN-NET
AS37963
CN 2024-09-01
1y 9mo
2026-06-09 2.4m
51 peers
AS151704
v4 v6
GDSNET
AS45079
CN 2024-09-01
1y 9mo
2026-06-09 13k
38 peers
AS151704
v4 v6
SPDB-CN
AS56006
CN 2024-09-01
1y 9mo
2026-06-09 1k
60 peers
AS209 AS3549
v4 v6
SDSC
AS56013
CN 2024-09-01
1y 9mo
2026-06-09 256
25 peers
AS209 AS3549
v4 v6
BBGINETCN
AS58850
CN 2024-09-01
1y 9mo
2026-06-09 512
19 peers
AS209 AS2914 AS3130 AS3320 AS3491 AS3549 AS4128 AS6082 AS15562 AS24482 AS29140 AS35710 AS37697 AS64475 AS199524
v4 v6
KHTech
AS59083
CN 2024-09-01
1y 9mo
2026-06-09 4.4k
50 peers
AS209 AS2914 AS3130 AS3320 AS3491 AS3549 AS4128 AS6082 AS15562 AS19151 AS24482 AS35710 AS37697 AS64475 AS199524
v4 v6
AS63570
AS63570
CN 2024-09-01
1y 9mo
2026-06-09 2k
57 peers
AS209 AS3549 AS5392 AS30950 AS31554 AS34927 AS41095 AS49544 AS53202 AS199524 AS262462 AS266213
v4 v6
MTSCHINANET
AS137759
CN 2024-09-01
1y 9mo
2026-06-09 512
49 peers
AS174 AS209 AS1351 AS2914 AS3130 AS3320 AS3491 AS3549 AS4128 AS6082 AS7018 AS15562 AS19151 AS24482 AS24516 AS29504 AS31510 AS34927 AS35710 AS39351 AS51519 AS52468 AS61138 AS64112 AS64475 AS132825 AS134823 AS151326 AS199524 AS209650 AS212271 AS327960 AS328840
v4 v6
CDC-SAP-DC-SHA
AS146842
CN 2024-09-01
1y 9mo
2026-06-09 5.4k
158 peers
AS209 AS260 AS924 AS2152 AS3257 AS3320 AS3333 AS3491 AS3549 AS4775 AS5392 AS5580 AS6453 AS6461 AS6730 AS6762 AS6830 AS7018 AS7768 AS8218 AS8529 AS11039 AS12956 AS13781 AS14630 AS14907 AS15605 AS17350 AS19529 AS30950 AS31554 AS32590 AS34927 AS35280 AS39642 AS40864 AS48185 AS48237 AS49434 AS49544 AS49605 AS50628 AS51185 AS52468 AS52873 AS53202 AS56457 AS57866 AS59414 AS60924 AS151704 AS197580 AS199524 AS212317 AS216285 AS262462 AS264479 AS266213 AS397131
v4 v6
CHINAENTERCOM
AS10212
CN 2024-09-26
1y 8mo
2026-06-09 768
79 peers
AS209 AS835 AS999 AS1299 AS3320 AS3491 AS3549 AS4181 AS5394 AS6730 AS6762 AS6830 AS7018 AS7594 AS8220 AS12956 AS12969 AS19529 AS19754 AS20514 AS22652 AS23367 AS28824 AS33185 AS33874 AS34927 AS35426 AS37697 AS39122 AS41073 AS49605 AS50304 AS51185 AS52468 AS55222 AS56457 AS57630 AS57821 AS61832 AS151704 AS197580 AS199524 AS216285 AS265721 AS328964 AS398465
v4 v6
CHINAUNIONPAY
AS139148
CN 2024-12-04
1y 6mo
2026-06-09 2.3k
7 peers
AS209 AS3549
v4 v6
HSDC-CN
AS151247
CN 2026-03-20
2mo
2026-06-09 512
56 peers
AS174 AS209 AS1000 AS3549 AS5392 AS7594 AS13830 AS29504 AS30950 AS31510 AS31554 AS34927 AS41095 AS49544 AS52468 AS53202 AS61138 AS64112 AS132825 AS134823 AS151326 AS198150 AS199524 AS209650 AS212271 AS262462 AS263009 AS266213 AS271253 AS327960 AS328840
v4 v6

Network Size

IPv4 and IPv6 prefixes originated over time

265
v4 prefixes
929k
v4 addresses
404
v6 prefixes
23.8
v6 /32s

Downstream Customers Over Time

Count of distinct downstream customers per snapshot date

Peering Links Over Time

Count of unclassified adjacencies per snapshot date

2026-06-06
Lost Transit
BJKSCNET AS59019 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 642d
2026-05-10
New Transit
BJKSCNET AS59019 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2026-04-10
Lost Transit
FibrLINK AS9814 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 585d
2026-04-08
Lost Transit
HERBALIFE-CNDC AS56000 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 583d
2026-03-26
Lost Transit
SPDB-CN AS56006 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 570d
2026-03-21
New Transit
HSDC-CN AS151247 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2026-02-14
Lost Transit
EBAY-ASIA-AS AS24331 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 530d
2026-01-21
Lost Transit
CNCGROUP-SH AS17621 → lost provider CYPRESSTEL AS55996
Confidence: 85% Duration: 120d
2026-01-21
Lost Transit
CHINA169-Backbone AS4837 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 120d
2025-12-31
Lost Transit
FREENET AS24427 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 485d
2025-12-17
Lost Transit
AS26380 AS26380 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 471d
2025-11-29
Lost Transit
CHINAUNIONPAY AS139148 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 359d
2025-11-20
Lost Transit
SDSC AS56013 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 444d
2025-11-08
Lost Transit
BLUECLOUD AS58593 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 97d
2025-11-07
New Transit
BLUECLOUD AS58593 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2025-11-01
New Transit
CNCGROUP-SH AS17621 → added provider CYPRESSTEL AS55996
Confidence: 90%
2025-11-01
New Transit
CHINA169-Backbone AS4837 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2025-10-31
Lost Transit
CNNIC-DSNET-AP AS23853 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 424d
2025-10-24
Lost Transit
AS137746 AS137746 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 417d
2025-10-23
Lost Transit
CNCGROUP-SH AS17621 → lost provider CYPRESSTEL AS55996
Confidence: 85% Duration: 30d
2025-10-23
Lost Transit
CHINA169-Backbone AS4837 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 30d
2025-10-02
Lost Transit
intel-china AS55958 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 395d
2025-09-24
Lost Transit
VISA-AS-AP AS135432 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 387d
2025-09-23
Lost Transit
CNNIC-DSNET-AP AS23853 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 386d
2025-09-23
New Transit
CNCGROUP-SH AS17621 → added provider CYPRESSTEL AS55996
Confidence: 90%
2025-09-23
New Transit
CHINA169-Backbone AS4837 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2025-09-22
New Transit
intel-china AS55958 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2025-09-21
New Transit
VISA-AS-AP AS135432 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2025-09-16
Lost Transit
intel-china AS55958 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 379d
2025-09-12
Lost Transit
CNNIC-DSNET-AP AS23853 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 375d
2025-09-11
Possible Trial
BLUECLOUD AS58593 → possible trial with CNCGROUP-SH AS17621
Confidence: 60%
2025-08-23
Lost Transit
ICBC-AstroNet AS137758 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 224d
2025-08-23
Lost Transit
BLUECLOUD AS58593 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 20d
2025-08-09
Lost Transit
VISA-AS-AP AS135432 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 341d
2025-08-08
Lost Transit
YOVOLE AS45086 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 340d
2025-08-03
New Transit
BLUECLOUD AS58593 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2025-08-01
Lost Transit
VISA-AS-AP AS135432 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 333d
2025-07-09
New Transit
VISA-AS-AP AS135432 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2025-06-29
New Transit
NovaNetwork AS9809 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2025-06-12
Lost Transit
QIHOO AS55992 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 283d
2025-06-12
Lost Transit
STN-CN AS17775 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 283d
2025-06-06
Lost Transit
VISA-AS-AP AS135432 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 277d
2025-06-04
Lost Transit
DellChina AS38057 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 275d
2025-05-29
New Transit
ICBC-AstroNet AS137758 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2025-05-21
Lost Transit
GSGH AS38375 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 261d
2025-05-15
Lost Transit
NovaNetwork AS9809 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 255d
2025-05-10
New Transit
VISA-AS-AP AS135432 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2025-04-24
Lost Transit
travelsky AS38381 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 181d
2025-04-24
Lost Transit
GSGH AS38375 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 234d
2025-04-24
Lost Transit
HAPLINK-CN-AP AS17739 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 234d
2025-04-20
Lost Transit
VISA-AS-AP AS135432 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 230d
2025-03-07
Lost Transit
travelsky AS38381 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 133d
2025-03-06
Lost Transit
BJKSCNET AS59019 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 185d
2025-03-06
Lost Transit
GSGH AS38375 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 185d
2025-03-06
Lost Transit
HAPLINK-CN-AP AS17739 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 185d
2025-01-31
Lost Transit
BJKSCNET AS59019 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 151d
2025-01-31
Lost Transit
travelsky AS38381 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 98d
2025-01-31
Lost Transit
GSGH AS38375 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 151d
2025-01-31
Lost Transit
HAPLINK-CN-AP AS17739 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 151d
2024-12-19
Lost Transit
GECHINANET AS63615 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 108d
2024-12-09
Possible Trial
travelsky AS38381 → possible trial with CNCGROUP-SH AS17621
Confidence: 60% Duration: 6d
2024-12-05
New Transit
CHINAUNIONPAY AS139148 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-12-01
New Transit
NovaNetwork AS9809 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-11-21
Lost Transit
travelsky AS38381 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 27d
2024-11-21
Lost Transit
NovaNetwork AS9809 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 80d
2024-11-11
New Transit
MSMSL-AS-AP AS7609 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-10-31
Lost Transit
travelsky AS38381 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 6d
2024-10-31
Lost Transit
GSGH AS38375 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 59d
2024-10-31
Lost Transit
HAPLINK-CN-AP AS17739 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 59d
2024-10-31
Lost Transit
NovaNetwork AS9809 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 59d
2024-10-31
Lost Transit
MSMSL-AS-AP AS7609 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 59d
2024-10-23
Lost Transit
GSGH AS38375 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 51d
2024-10-23
Lost Transit
HAPLINK-CN-AP AS17739 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 51d
2024-10-23
Lost Transit
NovaNetwork AS9809 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 51d
2024-10-23
Lost Transit
MSMSL-AS-AP AS7609 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 51d
2024-10-17
New Transit
GSGH AS38375 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-10-17
New Transit
HAPLINK-CN-AP AS17739 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-10-17
New Transit
NovaNetwork AS9809 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-10-17
New Transit
MSMSL-AS-AP AS7609 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-10-11
Possible Trial
FNTN AS137749 → possible trial with CNCGROUP-SH AS17621
Confidence: 60%
2024-10-11
Possible Trial
Ruisu-51IDC AS55994 → possible trial with CNCGROUP-SH AS17621
Confidence: 60%
2024-10-11
Possible Trial
GSGH AS38375 → possible trial with CNCGROUP-SH AS17621
Confidence: 60%
2024-10-11
Possible Trial
BRAUN-AS AS35163 → possible trial with CNCGROUP-SH AS17621
Confidence: 60%
2024-10-11
Possible Trial
NovaNetwork AS9809 → possible trial with CNCGROUP-SH AS17621
Confidence: 60%
2024-09-30
Lost Transit
Ruisu-51IDC AS55994 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 28d
2024-09-27
New Transit
CHINAENTERCOM AS10212 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-09-20
Lost Transit
BRAUN-AS AS35163 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 18d
2024-09-19
Lost Transit
FNTN AS137749 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 17d
2024-09-11
Lost Transit
GSGH AS38375 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 9d
2024-09-11
Lost Transit
NovaNetwork AS9809 → lost provider CNCGROUP-SH AS17621
Confidence: 85% Duration: 9d
2024-09-02
New Transit
CDC-SAP-DC-SHA AS146842 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-09-02
New Transit
MTSCHINANET AS137759 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-09-02
New Transit
FNTN AS137749 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-09-02
New Transit
AS137746 AS137746 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-09-02
New Transit
VISA-AS-AP AS135432 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-09-02
New Transit
GECHINANET AS63615 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-09-02
New Transit
AS63570 AS63570 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-09-02
New Transit
KHTech AS59083 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-09-02
New Transit
BBGINETCN AS58850 → added provider CNCGROUP-SH AS17621
Confidence: 90%
2024-09-02
New Transit
SDSC AS56013 → added provider CNCGROUP-SH AS17621
Confidence: 90%

Renewal Calendar

Active providers first seen 11–13 months ago — possible annual contract renewals

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