Home ASN LookupAS21497

AS21497 UMC-AS PrJSC "VF UKRAINE"

🇺🇦

Org handle: ORG-UMC1-RIPE

RIPE NCCallocated

Announced Prefixes (BGP)

172total

171 IPv41 IPv6

IPv4 Addresses

Allocated (RIR)929,792

Announced (BGP)1.7M

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)7.9×10²⁸

Prefix Limit (IPv4)

1,000

Prefix Limit (IPv6)

Country

🇺🇦 UA

RIR

RIPE NCC

Status

allocated

Allocated

2002-01-02

Routing hygiene

Score 19/100 · Low risk

RPKI ROA coverage

55.2%

4 prefixes RPKI invalid

IRR route objects

100%

no origin mismatches

Hijack signals

0 announced against others' ROAs, 0 own announced by others

Upstreams

diversity 71/100

45% of announced prefixes (77 of 172) have no valid ROA, 4 of them RPKI invalid

Based on 172 announced prefixes, updated daily (2026-10-23). How the score works · RPKI explained

Announced Prefixes

(BGP)172

Prefix	RPKI	IRR	Last Seen
31.12.128.0/17	No ROA	RIPE	2026-10-27
31.12.128.0/18	No ROA	RIPE	2026-10-27
31.144.0.0/16	Valid	RIPE	2026-10-27
31.144.0.0/17	Valid	RIPE	2026-10-27
31.144.0.0/18	Valid	RIPE	2026-10-27
31.144.0.0/19	Valid	RIPE	2026-10-27
31.144.32.0/19	Valid	RIPE	2026-10-27
31.144.64.0/18	Valid	RIPE	2026-10-27
31.144.64.0/19	Valid	RIPE	2026-10-27
31.144.96.0/19	Valid	RIPE	2026-10-27

1-10 of 172

1 / 18

Allocated Prefixes

(RIR)86

Prefix	Country	RIR	Status
31.12.128.0/17	🇺🇦 UA	RIPENCC	allocated
31.12.128.0/18	🇺🇦 UA	RIPE	assigned
31.144.0.0/16	🇺🇦 UA	RIPENCC	allocated
31.144.0.0/17	🇺🇦 UA	RIPE	assigned
31.144.128.0/17	🇺🇦 UA	RIPE	assigned
46.133.0.0/16	🇺🇦 UA	RIPENCC	allocated
46.133.0.0/17	🇺🇦 UA	RIPE	assigned
46.133.128.0/17	🇺🇦 UA	RIPE	assigned
77.52.0.0/16	🇺🇦 UA	RIPENCC	allocated
77.52.24.0/24	🇺🇦 UA	RIPE	assigned

1-10 of 86

1 / 9

All 172 announced prefixes of AS21497 →

Downstream Customers(1)

ASN	Name
AS208038	🇺🇦ITTAK-AS ITTak LLC

BGP Neighbours

(seen in AS paths)

Upstreams (11)

Networks AS21497 hands its own prefixes to: transit providers, or peers at an exchange.

AS2914NTT America84
AS22356Durand Do Brasil Ltda33
AS6939Hurricane Electric10
AS6204ZET NET INTERKVM HOST9
AS1273IDDQD8
AS6461Zayo Bandwidth7
AS20562OPEN PEERING Broadband Hosting B.V7
AS3257GTT BACKBONE GTT Communications5
AS33891CORE BACKBONE Core Backbone5
AS8966Etisalat EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC3
AS24940HETZNER Online1

Downstreams (49)

Networks whose own prefixes AS21497 passes on: usually its customers.

AS31148FREENET PRIVATE JOINT STOCK COMPANY "FARLEP INVEST"502
AS6703ALKAR PRIVATE JOINT STOCK COMPANY "FARLEP INVEST"76
AS34605LINET12
AS34143FREENET PRIVATE JOINT STOCK COMPANY "FARLEP INVEST"8
AS12883UCOMLINE PRIVATE JOINT STOCK COMPANY "FARLEP INVEST"7
AS16044IPORT UNITED7
AS44291INFOMIR NET Infomir6
AS205722BINOTEL AB Binotel6
AS12593AS12593 "UKRCOM"4
AS43309GIPERNET4
AS25372ITCONSULTING IT Consulting L.L.C3
AS34265SILVERTELECOM3
AS198429DRWD Ruslan Korol Trading As DARKWOOD3
AS201482UA LUX Luxoft Professional Romania S.R.L3
AS8258VISTI NET Information Centre Elektronni Visti2
AS34118PELENG "Universal Inside Corporate"2
AS42799TELCOM UA PE Teleradiocompany Telcom2
AS44616TKSGROUP "Asset Management Company "Active Investments"2
AS49168ISP BROK X PE Brok X2
AS52003WICOM UA PP "WiCom"2
AS8813VEGA OD UA PRIVATE JOINT STOCK COMPANY "FARLEP INVEST"1
AS12294TSYSTEMS PrJSC "VF UKRAINE"1
AS29491KIEVLINE1
AS31062TTCUA TOV Transtelecom1
AS31504SVT COM SVT COM1
AS31589ZSTAL Zaporizhstal Integrated Iron & Steel Works PJSC1
AS39230MHP PRJSC "MHP"1
AS39722CARLSBERGUA PJSC Carlsberg Ukraine1
AS42489WLINK DP UA W LINK1
AS44800BELNETUA BELNET1
AS47940AKHZ PRIVATE JOINT STOCK COMPANY "KAMET STEEL"1
AS48117CITYNET1
AS52151SEVGOK PrAT Pivnichny Girnycho Zbagachuvalny Kombinat1
AS57441METROKH Municipal Company "Kharkov Metropolitan"1
AS57787ZEONBUD1
AS59602ASFORTPOST FORTPOST1
AS199313UKRNAFTA UKRNAFTA, Public Joint Stock Company1
AS202443WINE And Food Partners1
AS203930FreeUkraine "INFORMATSIINE AGENTSTVO "VILNA UKRAINA"1
AS204408OL DP UA Heneralov Yevhenii1
AS207889UNETCO1
AS208038ITTAK1
AS208139AVATOR FOP Avator Myhaylo Mykolayovych1
AS209647CGOK PRIVATE JOINT STOCK COMPANY "CENTRAL IRON ORE ENRICHMENT WORKS"1
AS210068AVATOR GROUP Avator Group1
AS210330SGTAS PrJSC "Insurance Group "TAS"1
AS210669RESPUBLIKA TRC RESPUBLIKA1
AS212233PromRynok7km PROMTOVARNYI RYNOK1
AS214324TechnoOptic Maksym Mykolayovych Khondozhko1

Other adjacent networks (7)

Adjacent to AS21497 in the transit part of AS paths: peers, providers or customers.

AS34867COSMONOVA5
AS6702APEXNCC Science Production Company "Trifle"2
AS24482SG.GS2
AS4230CLARO S.A1
AS48362TKSWF Stadtwerke Feldkirch1
AS60812IXP 1 IX UA "1 IX"1
AS64049Reliance Jio Infocomm Pte Singapore1

ASPA

No ASPA0 upstreams, 1 downstream

Listed as Upstream Provider by

1 ASN

View full ASPA details →

Abuse Contact

External Links

RIPE Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
How to run an ASPA checkVerify the upstream providers listed above
IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/21497

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/21497" | jq