ResearchRouting table, RPKI, IRR & looking glass

AS21859 Zenlayer Inc

AS21859 (ZEN-ECN) is registered to Zenlayer Inc in US, through ARIN. It originates 1,842 prefixes in the global routing table.

1,678
IPv4 prefixes
164
IPv6 prefixes
714,752
IPv4 addresses
69%
RPKI valid
Registration

Who holds AS21859

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS21859
Handle
ZEN-ECN
Organization
Zenlayer Inc
Country
US
Registry
ARIN
ASPA
None published
WHOIS recordARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       21859
ASName:         ZEN-ECN
ASHandle:       AS21859
RegDate:        2013-04-02
Updated:        2021-07-17
Ref:            https://rdap.arin.net/registry/autnum/21859


OrgName:        Zenlayer Inc
OrgId:          ZENLA-7
Address:        21700 Copley Dr Suite 350
City:           Diamond Bar
StateProv:      CA
PostalCode:     91765
Country:        US
RegDate:        2017-12-27
Updated:        2026-09-15
Ref:            https://rdap.arin.net/registry/entity/ZENLA-7


OrgNOCHandle: IPNOC27-ARIN
OrgNOCName:   IPNOC
OrgNOCPhone:  +1-800-858-7986 
OrgNOCEmail:  ipnoc-t3@zenlayer.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/IPNOC27-ARIN

OrgTechHandle: IPNOC27-ARIN
OrgTechName:   IPNOC
OrgTechPhone:  +1-800-858-7986 
OrgTechEmail:  ipnoc-t3@zenlayer.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPNOC27-ARIN

OrgTechHandle: TANGR16-ARIN
OrgTechName:   Tang, Ruifan 
OrgTechPhone:  +1-800-858-7986 
OrgTechEmail:  ruifan.tang@zenlayer.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TANGR16-ARIN

OrgTechHandle: NETWO10646-ARIN
OrgTechName:   Network Registry
OrgTechPhone:  +1-800-858-7986 
OrgTechEmail:  netreg@zenlayer.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO10646-ARIN

OrgTechHandle: IPADM641-ARIN
OrgTechName:   IP ADMIN
OrgTechPhone:  +1-909-718-3558 
OrgTechEmail:  ipadmin@zenlayer.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPADM641-ARIN

OrgAbuseHandle: SOCOP-ARIN
OrgAbuseName:   SOC Ops
OrgAbusePhone:  +1-909-718-3558 
OrgAbuseEmail:  abuse@zenlayer.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SOCOP-ARIN

OrgNOCHandle: IPADM641-ARIN
OrgNOCName:   IP ADMIN
OrgNOCPhone:  +1-909-718-3558 
OrgNOCEmail:  ipadmin@zenlayer.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/IPADM641-ARIN

OrgTechHandle: CHUAN32-ARIN
OrgTechName:   Chuang, Zoe 
OrgTechPhone:  +1-909-718-3558 
OrgTechEmail:  zoe.chuang@zenlayer.com
OrgTechRef:    https://rdap.arin.net/registry/entity/CHUAN32-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
Routing

What AS21859 announces

Prefixes originated by AS21859 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
1,678
IPv6 prefixes
164
IPv4 addresses
714,752 (2,792 /24s)
RPKI valid
1,284 69%
RPKI invalid
4
RPKI not found
554
ROAs naming AS21859
867
With an IRR route object
1,631 88%
Prefixes

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (1,678)
2.27.161.0/245.252.82.0/248.23.192.0/2314.102.227.0/2423.27.112.0/2423.90.128.0/2023.90.144.0/2023.90.160.0/2123.90.168.0/2223.90.168.0/2323.90.170.0/2323.90.172.0/2323.90.174.0/2323.90.176.0/2223.90.180.0/2223.90.180.0/2423.90.181.0/2423.90.182.0/2423.90.183.0/2423.90.184.0/2323.90.186.0/2323.90.188.0/2223.91.102.0/2323.91.108.0/2423.139.252.0/2423.154.4.0/2423.154.44.0/2423.154.76.0/2423.154.84.0/2423.154.92.0/2423.154.108.0/2423.154.140.0/2423.154.148.0/2423.236.65.0/2423.236.70.0/2423.236.96.0/2423.236.97.0/2423.236.98.0/2423.236.99.0/2423.236.100.0/2323.236.101.0/2423.236.102.0/2323.236.103.0/2423.236.104.0/2323.236.104.0/2423.236.106.0/2423.236.107.0/2423.236.108.0/2423.236.109.0/2423.236.110.0/2423.236.112.0/2023.236.112.0/2323.236.114.0/2423.236.116.0/2423.236.118.0/2423.236.119.0/2423.236.120.0/2223.236.123.0/2423.236.124.0/2423.236.125.0/2423.236.127.0/2423.248.160.0/1923.248.160.0/2423.248.161.0/2423.248.164.0/2423.248.165.0/2423.248.166.0/2323.248.168.0/2223.248.172.0/2423.248.173.0/2423.248.176.0/2323.248.178.0/2423.248.179.0/2423.248.180.0/2423.248.181.0/2423.248.182.0/2423.248.183.0/2423.248.186.0/2323.248.189.0/2423.248.190.0/2323.251.96.0/1923.251.96.0/2423.251.97.0/2423.251.98.0/2323.251.100.0/2323.251.102.0/2423.251.103.0/2423.251.106.0/2323.251.108.0/2223.251.112.0/2423.251.113.0/2423.251.114.0/2423.251.115.0/2423.251.116.0/2323.251.118.0/2323.251.120.0/2423.251.121.0/2423.251.122.0/2423.251.123.0/2423.251.124.0/2223.251.124.0/2423.251.125.0/2431.57.35.0/2431.57.100.0/2431.57.228.0/2431.99.202.0/2431.216.56.0/2436.255.193.0/2436.255.194.0/2437.202.222.0/2438.28.244.0/2438.28.245.0/2438.28.246.0/2438.28.247.0/2438.33.144.0/2438.33.145.0/2438.33.146.0/2438.33.147.0/2438.33.148.0/2438.33.149.0/24
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IPv6 (164)
2403:8300:e00::/482403:8300:e02::/482403:8300:e04::/472403:8300:e08::/462404:3700::/482404:ff40:3000::/36240d:c010:14b::/48240d:c010:14c::/482602:fed2:731a::/482602:ffe4::/382602:ffe4:3::/482602:ffe4:400::/382602:ffe4:401::/482602:ffe4:800::/382602:ffe4:c01::/482602:ffe4:c02::/482602:ffe4:c03::/482602:ffe4:c05::/482602:ffe4:c06::/482602:ffe4:c07::/482602:ffe4:c09::/482602:ffe4:c0a::/482602:ffe4:c0b::/482602:ffe4:c0d::/482602:ffe4:c11::/482602:ffe4:c13::/482602:ffe4:c14::/482602:ffe4:c15::/482602:ffe4:c16::/482602:ffe4:c18::/482602:ffe4:c19::/482602:ffe4:c1a::/482602:ffe4:c1c::/482602:ffe4:c1f::/482602:ffe4:c20::/482602:ffe4:c21::/482602:ffe4:c22::/482602:ffe4:c26::/482602:ffe4:c27::/482602:ffe4:c34::/482602:ffe4:c37::/482602:ffe4:c3b::/482602:ffe4:c3c::/482602:ffe4:c3e::/482602:ffe4:c40::/482602:ffe4:c41::/482602:ffe4:c42::/482602:ffe4:c44::/482602:ffe4:c45::/482602:ffe4:c48::/482602:ffe4:c49::/482602:ffe4:c4a::/482602:ffe4:c4b::/482602:ffe4:c4c::/482602:ffe4:c4d::/482602:ffe4:c4e::/482602:ffe4:c4f::/482602:ffe4:c50::/482602:ffe4:c51::/482602:ffe4:c52::/482602:ffe4:c53::/482602:ffe4:c54::/482602:ffe4:c56::/482602:ffe4:c57::/482602:ffe4:c58::/482602:ffe4:c5b::/482602:ffe4:c5d::/482602:ffe4:c5e::/482602:ffe4:c64::/482602:ffe4:c65::/482602:ffe4:c6c::/482602:ffe4:c6d::/482602:ffe4:c6e::/482602:ffe4:c70::/482602:ffe4:c72::/482602:ffe4:c79::/482602:ffe4:c7a::/482602:ffe4:c7b::/482602:ffe4:c9c::/482602:ffe4:c9d::/482602:ffe4:c9e::/482602:ffe4:ca0::/482602:ffe4:ca3::/482604:980:1000::/362604:980:2000::/362604:980:3000::/362604:980:3008::/482604:980:4000::/362604:980:5000::/362604:980:7000::/362604:980:7003::/482604:980:7005::/482604:980:8000::/362604:980:9000::/362604:980:a000::/362604:980:b000::/362604:980:d000::/362604:980:e000::/482604:980:e001::/482604:980:e002::/482604:980:e004::/482604:980:e005::/482604:980:e006::/482604:980:e007::/482604:980:e008::/482604:980:e009::/482604:980:e00a::/482604:980:e00b::/482604:980:e00c::/482604:980:e00d::/482604:980:e00e::/482604:980:e00f::/482604:980:e010::/482604:980:e032::/482604:980:e034::/482604:980:e035::/482604:980:e03e::/482607:a400::/322607:a400:5::/482a05:2ac0::/29
Show 44 more
2a07:db01:5::/482a07:fc40::/292a09:40::/292a0b:21c0:1000::/362a0b:21c0:1004::/482a0b:21c0:1005::/482a0b:21c0:2000::/362a0b:21c0:3000::/362a0b:21c0:3003::/482a0b:21c0:4000::/362a0b:21c0:5000::/362a0b:21c0:6000::/362a0b:21c0:7000::/362a0b:21c0:8000::/362a0b:21c0:9000::/362a0b:21c0:a000::/362a0b:21c0:b000::/362a0b:21c0:c000::/362a0b:21c0:d000::/362a0b:21c0:e000::/362a0b:21c0:f000::/362a0b:21c1:1000::/362a0b:21c1:3000::/362a0b:21c1:5000::/362a0b:21c1:6008::/482a0b:21c1:6009::/482a0b:21c1:600a::/482a0b:21c1:6010::/482a0b:21c1:6011::/482a0b:21c1:6012::/482a0b:21c1:601b::/482a0b:21c1:602d::/482a0b:21c1:602f::/482a0c:2cc0::/292a0c:43c0::/292a0c:4e00::/292a0c:6a80::/292a0f:3940::/292a10:3c0:3::/482a10:3c0:4::/482a10:3c0:5::/482a10:8740::/292a10:e180::/292a13:9500:aa::/48

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS21859 is reached through

The AS just before AS21859 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS4229 ZEN-NET 34AS6939 HURRICANE 26AS1299 TWELVE99 10AS174 COGENT-174 9AS2914 NTT-DATA-2914 5AS3356 LEVEL3 5AS12956 TELXIUS 4AS3257 GTT-BACKBONE 4AS6461 ZAYO-6461 3AS38082 IIT-TIG-AS-AP 3AS3462 HINET 3AS9299 IPG-AS-AP 3AS40850 AS-UPIX-40850 2AS7195 AS7195 2AS47589 KTC3G 2AS18403 FPT-VN 2AS20764 RASCOM-AS 1AS39386 STC-IGW-AS 1AS48237 MOBILY-AS 1AS9498 BBIL-AP 1AS55410 VIL-AS-AP 1AS8529 OMANTEL-AS 1AS200612 GulfBridgeInternational 1AS8966 Etisalat-AS 1AS7552 VIETEL-AS-AP 1
ASPA

Provider authorization

AS21859 publishes no ASPA of its own. 8 ASes name it as a provider in theirs. Check a path.

The 8 ASes that name AS21859 as a provider
AS44578 ITGLOBALCOM-DMCCAS47583 AS-HOSTINGERAS135244 KNET-ASAS138128 SOLNET-IDAS199180 LAGOM-NETAS200325 BunnyCDNAS211575 RuiNetworkAS402336 CHICFINDS
IRR

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
ALTDBTELX-AS21859MAINT-TELX
RADBZENLAYERMAINT-AS21859

Route objects with origin AS21859: RADB 1,888 · APNIC 310 · ARIN 274 · RIPE 216 · NTTCOM 195 · AFRINIC 26 · ALTDB 4 · LACNIC 1

as-sets that list AS21859 (261)first 40 shown
AS-10099AS-132280AS-132876AS-137491AS-208628AS-32098AS-393437AS-40676AS-45899AS-45899CUSTAS-4800:AS-LINTASARTA-NAPAS-63529-AS-IMPORT-AS137557AS-63529-AS-IMPORT-AS140867AS-63529-AS-IMPORT-AS45265AS-63959AS-7195:AS-PROTECTED-CUSTAS-7552AS-AAMRA-ATL-BDAS-ACEGWAS-ACT-GLOBALAS-ADC-NETAS-ADCCUSTAS-ADCISPAS-AIXAS-AMS-IX-MUM-RSAS-AMS-IX-MUM-RS-SETSAS-AMS-IX-MUM-RS-SETS-V6AS-AMS-IX-MUM-RS-V6AS-ANY2-RSAS-ATT2688-REGAS-BACKUPAS-BBCONNECTAS-BBIX-MANILARSAS-BESTEL-NETAS-BEZEQINTAS-BTELEKOMAS-C3AS-C3-ASIAAS-CC-TRANSITAS-CN2
Tools

Check AS21859 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup