Autonomous System
AS21859 — PROHEALTH-CARE - ProHealth Care Inc.(US)
Last fetched
AS21859 is an Autonomous System operated by PROHEALTH-CARE - ProHealth Care Inc. and registered in US. As of Wed, 20 May 2026 23:31:22 GMT, it announces 1,750 routed IP prefixes and peers with 269 other Autonomous Systems in the WhisperGraph BGP dataset.
Nutrition Label
Routing footprint
AS21859 announces 1,750 distinct routed prefixes. The 25-prefix sample below links to per-prefix pages with full conflict and reverse-DNS detail.
- 2.27.127.0/24
- 5.180.215.0/24
- 5.252.120.0/22
- 8.24.178.0/23
- 14.102.224.0/20
- 23.27.119.0/24
- 23.91.80.0/20
- 23.91.96.0/24
- 23.91.97.0/24
- 23.91.98.0/24
- 23.91.99.0/24
- 23.91.100.0/24
- 23.91.101.0/24
- 23.91.102.0/23
- 23.91.105.0/24
- 23.91.108.0/24
- 23.91.109.0/24
- 23.91.110.0/23
- 23.91.112.0/24
- 23.92.65.0/24
- 23.92.67.0/24
- 23.129.180.0/24
- 23.140.228.0/24
- 23.236.136.0/24
- 23.236.143.0/24
Peering ecosystem
269 distinct peers via BGP. The first 200 (alphabetical) are listed below.
| Peer ASN | Operator | Country |
|---|---|---|
| AS174 | COGENT-174 - Cogent Communications, LLC | US |
| AS146813 | IDNIC-DISKOMINFOKEPRI-AS-ID DINAS KOMUNIKASI DAN INFORMATIKA PROVINSI KEPULAUAN RIAU | CN |
| AS142622 | HELLOFIBRA SERVICES PENA, S.R.L. | JP |
| AS142040 | JOTAZO TELECOM | HK |
| AS142002 | WIFI-AS | SG |
| AS141742 | LANDKREISKASSEL | TW |
| AS141444 | AGORA - WB Games Inc. | HK |
| AS141389 | AS12CONNECTEVENTS | SG |
| AS141180 | VIB-AS-VN Vietnam Internationl commercial joint stock bank | SG |
| AS140899 | BLUESTEMFIBER - Nextlink Broadband | SG |
| AS140806 | NEO-CLOUD-AS | VN |
| AS140633 | IT4U-AS | CN |
| AS139811 | MAHEK-IN Manipal Academy of Higher Education, Karnataka | HK |
| AS139341 | CMC - Catholic Medical Center | SG |
| AS139339 | TACIRLER | TH |
| AS139057 | MODAC | SG |
| AS138995 | IDNIC-IAIN-BUKITTINGGI-AS-ID Institut Agama Islam Negeri Bukittinggi | HK |
| AS138571 | ZAHA | HK |
| AS138195 | SCL-AS-AP Silk Contract Logistics Pty Ltd. | KR |
| AS138152 | MELTUS-NETWORKS-AS-AP Meltus Networks | HK |
| AS137969 | SLE | HK |
| AS137922 | Compuservice Empreendimentos Ltda | US |
| AS137785 | INTERSUL TELECOM COMUNICACOES EIRELI ME | CN |
| AS137710 | CARHA-ASN - CARHARTT Inc. | CN |
| AS137552 | BUK-IN Bodoland University, Kokrajhar | MY |
| AS137443 | CUEBID-ASN Cuebid Cloud Services | HK |
| AS137409 | ITCLOUD-VN VU GIA TECHNOLOGY INVESTMENT JOINT STOCK COMPANY | AU |
| AS137280 | JAROSZ-AS | HK |
| AS137190 | TIMEWARP-AS | SG |
| AS136993 | CHTCDN Data Communication Business Group | HK |
| AS136897 | ASN-UMAI | HK |
| AS136744 | DPTL-AS-AP DREAM POWER TECHNOLOGY LIMITED | HK |
| AS136255 | SERVICE-AGENCY-OF-MIA-AS | MM |
| AS135905 | MDMASUMHASAN-AS-AP Non Stop Network | VN |
| AS135596 | HANSTECH-AS-HK Hans Online Services | TW |
| AS135377 | CCL-AS-AP CBSOFT CO., LTD. | HK |
| AS135356 | MAXIMO-AS-IN Maximo Infotech | HK |
| AS134835 | InforSeven . | HK |
| AS134829 | USAC1-AS | HK |
| AS133929 | CHINATELECOM-ZHEJIANG-HUZHOU-5G-NETWORK CHINATELECOM ZHEJIANG province HUZHOU 5G network | HK |
| AS133865 | CITY-OF-RICHMOND - City of Richmond | CN |
| AS133847 | WPE-AS | MY |
| AS133748 | INVI16 | SG |
| AS133606 | VISPL-AS-AP Vodafone India Services Private Ltd | TL |
| AS133478 | STS-CLOUD | CN |
| AS133199 | IITD-IN Indian Institute of Technology IIT, Dharwad | HK |
| AS133041 | SYSTAILOR- | HK |
| AS132825 | IDNIC-GAPURADIGITAL-AS-ID PT Gapura Era Digital | AU |
| AS132203 | LGO Leo Godard | CN |
| AS132139 | BILIBILIHKLIMITED-AS-AP BILIBILI HK LIMITED | HK |
| AS132111 | NPTPL-AS-AP Northern Point Technology Private Limited | MY |
| AS131659 | FUSION TELECOM | TW |
| AS131618 | Global Net S.R.L | TW |
| AS131613 | BJCCA-1 - Birmingham Jefferson Civic Center Authority | TW |
| AS64050 | GDS-HK Unit C&D, 10F Neich Tower, 128 Gloucester Rd, Wanchai | HK |
| AS63981 | FWCPL-AS-AP Fiberworld Communication Pvt. Ltd. | HK |
| AS63959 | KK-AS-AP KaritKarma | HK |
| AS63956 | IMGSB-AP Ingram Micro Global Services B.V. | AU |
| AS63793 | CUC Chiba University of Commerce | JP |
| AS63731 | BJMMYP BeiJing MaiMai You Pin Technology Co., Ltd. | VN |
| AS63631 | SKYUNNET Beijing Sankuai Cloud Computing Co.,Ltd. | CN |
| AS63593 | CAICTNET Chinese Academy of Telecommunication Research | CN |
| AS63473 | EXPRESSSERVER-INTERNET - Express Employment Professionals | US |
| AS63199 | ANDESASERVICESINC - Andesa Services, Inc | US |
| AS62654 | NBCSN-DMZ - NBC Sports Network | US |
| AS62610 | ABOR-SUN-CORRIDOR - Arizona Board of Regents | US |
| AS62468 | MBC-AS MBC FZ LLC | US |
| AS58815 | XENIAL-AS-AP Xenial Broadband. | ID |
| AS58453 | ICNC-AS ICNC LLC | HK |
| AS56655 | SYNFS-AS | NO |
| AS55992 | CHIT Changhong IT information Products CO.,LTD. | CN |
| AS55410 | GERRYS-AS-AP Gerrys Information Technology PVT Ltd | IN |
| AS55256 | IVALUA - Ivalua Inc. | US |
| AS54994 | AS-PIN - PIN LLC | CA |
| AS54538 | LCRC-AS - Louisiana Cancer Research Center | US |
| AS54113 | MODMC-54103-AS - MOD Mission Critical, LLC | US |
| AS53587 | URSINUS - Ursinus College | US |
| AS52129 | DIGITICK-SA | US |
| AS51082 | AARHUS-KOEBMANDSSKOLE | GB |
| AS50961 | ISR-TRANS-AS | AE |
| AS50673 | PUBGROUPE-FR publicisgroupe france | NL |
| AS48362 | VARNA-IX Internet Exchange Point | AT |
| AS48237 | RSERVERS-AS | SA |
| AS47589 | YIGITHOSTING | KW |
| AS47583 | ADAPTIVE | CY |
| AS45903 | SBV-AS-VN Department of Infomatic - The State Bank of Viet Nam | VN |
| AS45543 | ADTECASVN ADTEC Media Joint Stock Company | VN |
| AS45342 | SLIX Sri Lanka Internet Exchange point | TW |
| AS45102 | CHINACACHE Beijing Blue I.T Technologies Co.,Ltd. | CN |
| AS44578 | A4N Network Services | AE |
| AS44444 | ADGAR-POSTEPU | GB |
| AS42969 | NETSERVICES-AS | DE |
| AS41717 | SPOTNET_LTD | HK |
| AS40861 | CROSSTEL20051791WESTPOINT - Crosstel Inc | US |
| AS40850 | IBML-US-HQ - ibml | US |
| AS39600 | ANEXTOUR | US |
| AS39386 | TELESYSTEM-AS | SA |
| AS38854 | TNET-NET TNET Communication Inc. 10F., No.78, Sec. 2, Chongxin Rd., Sanchong Dist.,New Taipei City, Taiwan R.O.C Taiwan 241 | TW |
| AS38193 | PARLIAMENTNZ-AS-AP Parliamentary Services | PK |
| AS38090 | BUSANBANK2-AS-KR BUSANBANK | KR |
| AS38082 | PSC-NZ-AP Public Services Commission | TH |
| AS38001 | SVMHS-TRANSIT-AS-AP St Vincents & Mater Health Sydney | SG |
| AS37662 | BillyRonks-Global-AS | MU |
| AS37282 | EGYPTIAN-BANK | NG |
| AS37271 | AMOBIA-ASN | ZA |
| AS36086 | IPDEPLOY - IPDeploy | US |
| AS34927 | PANKERL-MEDIA | CH |
| AS34549 | TELESMART-AS | DE |
| AS33891 | NCPLG-AS Autonomous System | DE |
| AS32590 | VCSL-US - Virtusa Consulting Services Private Limited | US |
| AS32043 | UL - Underwriters Laboratories | US |
| AS31500 | KAERCHER-AS | AG |
| AS31133 | RAPIDSPACE RapidSpace | RU |
| AS30844 | PROBIL-AS | GB |
| AS30103 | CSEINS-AS - CSE SAFEGUARD INSURANCE COMPANY | US |
| AS30081 | IQUID - iQuid Inc. | US |
| AS29632 | SAB-ASN | BG |
| AS27418 | AS2-JDASOFTRCKVLLE - Blue Yonder, Inc | US |
| AS26658 | MISYS-AS - Finastra Technology Inc. | US |
| AS24482 | EPWORTH-MULTIHOME-AU-AP Epworth Hospital | SG |
| AS24429 | FREENET Freecomm Corporation | CN |
| AS24409 | CNNIC-YOUXINNET-AP Harbin mengxun chuanshu transmission Information technology Co., Ltd. | CN |
| AS24406 | CNISP-UNION CNISP-Union Technology Beijing Co., Ltd | CN |
| AS24373 | CNGI-CHC-IX-AS-AP CERNET2 IX at Jilin University | HK |
| AS24203 | ANDALASMEDIA-AS-ID PT. Andalas Media Informatika | ID |
| AS24173 | MINGYITEA-AS-TW Ming Yi Tea Farm | VN |
| AS24151 | ZDNS Internet Domain Name System Beijing Engineering Resrarch Center Ltd. | CN |
| AS24062 | KTB-KTBCS-TH KTB COMPUTER SERVICES COMPANY LIMITED | MY |
| AS23947 | INDOTRANS-AS-ID Indotrans Data, PT | ID |
| AS21245 | PLUSNET PlusGSM transit core network | TR |
| AS20764 | BPH | RU |
| AS20485 | TRANSTELECOM Moscow, Russia | RU |
| AS18734 | Operbes, S.A. de C.V. | MX |
| AS18678 | INTERNEXA S.A. E.S.P | CO |
| AS18530 | ISOMEDIA-1 - Isomedia, Inc. | US |
| AS18464 | ALVIDI - ALVIDI TECHNOLOGY Inc | US |
| AS18423 | RAID-AS-TW RAID Networks Co., Ltd. | TW |
| AS18403 | FPT-AS-AP FPT Telecom Company | VN |
| AS18046 | DONGFONG-TW DongFong Technology Co. Ltd. | TW |
| AS17727 | NAPINFO-AS-AP PT. NAP Info Lintas Nusa | ID |
| AS17639 | CONVERGE-AS Converge ICT Solutions Inc. | PH |
| AS17557 | PKTELECOM-AS-PK Pakistan Telecommunication Company Limited | PK |
| AS17497 | LGHL-AS-AP Liasail Global Hongkong Limited | HK |
| AS17494 | BTTB-AS-AP Telecom Operator & Internet Service Provider as well | BD |
| AS15412 | FLAG-AS Flag Telecom Global Internet AS | GB |
| AS14593 | SPACEX-STARLINK - Space Exploration Technologies Corporation | US |
| AS13444 | TRS-GL-01 - TRS | US |
| AS13335 | CLOUDFLARENET - Cloudflare, Inc. | US |
| AS12956 | TELXIUS TELXIUS Cable | ES |
| AS12389 | ROSTELECOM-AS PJSC Rostelecom. Technical Team | RU |
| AS12365 | SARKOR-AS ISP Sarkor Telecom | UZ |
| AS10111 | ZEONET-AS-AP Zeofast Network | CN |
| AS10099 | UNICOM-GLOBAL China Unicom Global | HK |
| AS9584 | GENESIS-AP Diyixian.com Limited | HK |
| AS9516 | SAKURALINK-AS-AP SAKURA LINK LIMITED | HK |
| AS9498 | BBIL-AP BHARTI Airtel Ltd. | IN |
| AS9457 | DREAMX-AS DREAMLINE CO. | KR |
| AS9299 | IPG-AS-AP Philippine Long Distance Telephone Company | PH |
| AS9286 | KINXIDC-AS-KR KINX | KR |
| AS9260 | MULTINET-AS-AP Multinet Pakistan Pvt. Ltd. | PK |
| AS9002 | RETN-AS | GB |
| AS8966 | ETISALAT-AS P.O. Box 1150, Dubai, U | AE |
| AS8781 | QA-ISP | QA |
| AS8551 | BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbone | IL |
| AS8529 | OMANTEL-AS ZOI - Zain Omantel International | AE |
| AS8452 | TE-AS TE-AS | EG |
| AS8220 | COLT COLT Technology Services Group Limited | GB |
| AS7713 | TELKOMNET-AS-AP PT Telekomunikasi Indonesia | ID |
| AS7575 | AARNET-AS-AP Australian Academic and Research Network AARNet | AU |
| AS7552 | VIETEL-AS-AP Viettel Group | VN |
| AS7536 | CDNEXIS-NET chiaochiao ltd. | TW |
| AS7483 | SKYCLOUD-NET Skycloud Computing co., Ltd. | TW |
| AS7361 | DATAZONE - DataZone Networks LLC | US |
| AS7346 | SPRINGTIDE-AS - Springtide Communications | US |
| AS7289 | AS-QT - QuantaRa Tech LLC | US |
| AS7195 | EDGEUNO S.A.S | CO |
| AS6939 | HURRICANE - Hurricane Electric LLC | US |
| AS6774 | ASN-BICS | BE |
| AS6762 | SEABONE-NET TELECOM ITALIA SPARKLE S.p.A. | IT |
| AS6696 | VERIXI | BE |
| AS6461 | ZAYO-6461 - Zayo Bandwidth | US |
| AS6453 | AS6453 - TATA COMMUNICATIONS AMERICA INC | US |
| AS5511 | OPENTRANSIT | FR |
| AS5065 | BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications | US |
| AS4788 | TTSSB-MY TM TECHNOLOGY SERVICES SDN. BHD. | MY |
| AS4775 | GLOBE-TELECOM-AS Globe Telecoms | PH |
| AS4766 | KIXS-AS-KR Korea Telecom | KR |
| AS4635 | HKIX-RS1 Hong Kong Internet Exchange--Route Server 1 | HK |
| AS4229 | ZEN-NET - Zenlayer Inc | US |
| AS3462 | HINET Data Communication Business Group | TW |
| AS3356 | LEVEL3 - Level 3 Parent, LLC | US |
| AS3303 | SWISSCOM Swisscom Switzerland Ltd | CH |
| AS3257 | GTT-BACKBONE GTT | US |
| AS3216 | SOVAM-AS | RU |
| AS2914 | NTT-DATA-2914 - NTT America, Inc. | US |
| AS1299 | TWELVE99 Arelion, fka Telia Carrier | SE |
| AS1221 | ASN-TELSTRA Telstra Limited | AU |
| AS984 | OWS-NETWORK - OCTOPUS WEB SOLUTION INC | US |
| AS979 | NETLAB-SDN - NetLab Global | US |
| AS912 | HUT8-EAST - Hut 8 Mining Corp. | CA |
Blast radius
Approximate count of dependent hostnames if AS21859 disappeared from the routing table.
~33,950 hostnames depend on this network.Sampled from 10 prefixes, snapshot Wed, 20 May 2026 23:31:22 GMT.
MOAS / hijack watch
Prefixes routed by AS21859 that another Autonomous System also announces. A non-empty list is one of the strongest BGP-hijack signals available without active probes.
| Prefix | Conflicting ASN | Operator |
|---|---|---|
| 128.65.136.0/21 | AS47465 | STARH |
| 128.65.136.0/21 | AS44266 | BM-PL-AS |
Threat posture
Related pages
Pivot deeper into the graph from AS21859.
Cypher and MCP
Reproduce the headline metric directly against graph.whisper.security:
MATCH (a:ASN {name: "AS21859"})-[:HAS_NAME]->(n:ASN_NAME)
OPTIONAL MATCH (a)-[:HAS_COUNTRY]->(c:COUNTRY)
RETURN a.name AS asn, n.name AS operator, c.name AS countryOr query Whisper from your own LLM workflow via the Whisper MCP server.