Autonomous System details

AS21283

A1 Slovenija telekomunikacijske storitve,d.d. · a1.si

Slovenia

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AS21283 – A1 Slovenija telekomunikacijske storitve,d.d.

Field	Value
Country	Slovenia
Website	a1.si
Hosted domains	1,453
IPv4 addresses	325,632
IPv6 addresses	1,346,878,762,742,493,739,090,247,155,712
ASN type	ISP
Registry	ripe
Allocated	23 years ago on Sep 20, 2002
Updated	a month ago on Dec 23, 2025

Netblock	Company	Num of IPs
46.122.0.0/15	A1 Slovenija	131,072
146.212.0.0/16	A1 Slovenija	65,536
90.157.128.0/17	A1 Slovenija telekomunikacijske storitve,d.d.	32,768
92.37.0.0/17	A1 Slovenija telekomunikacijske storitve,d.d.	32,768
46.164.0.0/18	A1 Slovenija	16,384
85.10.0.0/19	A1 Slovenija telekomunikacijske storitve,d.d.	8,192
212.18.32.0/19	A1 Slovenija	8,192
213.157.224.0/19	A1 Slovenija	8,192
62.84.224.0/20	A1 Slovenija	4,096
80.95.224.0/20	A1 Slovenija	4,096
85.10.32.0/20	Reverse delegation for A1 Slovenija	4,096
109.239.176.0/20	A1 Slovenija	4,096
46.122.64.0/21	A1 Slovenija telekomunikacijske storitve,d.d.	2,048
46.122.96.0/21	A1 Slovenija telekomunikacijske storitve,d.d.	2,048
94.127.24.0/21	A1 Slovenija telekomunikacijske storitve,d.d.	2,048
188.64.24.0/21	A1 Slovenija	2,048
185.28.8.0/22	A1 Slovenija	1,024
185.173.52.0/22	A1 Slovenija	1,024

Netblock	Company
2001:15c0::/29	A1 Slovenija telekomunikacijske storitve,d.d.
2a00:1a20::/29	A1 Slovenija telekomunikacijske storitve,d.d.
2a00:1a20::/32	A1 Slovenija telekomunikacijske storitve,d.d.

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WHOIS Details

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                                                ASHandle:       AS21283
                                                OrgID:          AS21283
                                                ASName:         AS21283
                                                ASNumber:       AS21283
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 1,453 domain names hosted across 422 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
213.157.243.70	████████	262
212.18.32.18	██████████	224
213.157.243.75	██████████	123
213.157.243.69	██████████	76
213.157.243.67	██████████	74
90.157.157.222	██████████	54
85.10.22.169	██████████	37
85.10.22.180	██████████	33
85.10.14.67	██████████	25
90.157.198.14	██████████	19

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Peers

There are 51 peers for this ASN.

Peers	Name
AS14840	BR.Digital Telecom
AS15822	AGENCIJA ZA ENERGIJO
AS1853	ACONET
AS196846	A1 Slovenija telekomunikacijske storitve,d.d.
AS196895	Uprava Republike Slovenije za javna placila
AS197391	Tobacna Ljubljana d.o.o.
AS197907	AKSON, poslovno in informacijsko svetovanje, d.o.o.
AS198061	Valicon d.o.o.
AS198150	SIACOM JSC
AS198524	iLOL d.o.o.
AS198827	Elektro Gorenjska, podjetje za distribucijo elektricne energije, d.d.
AS199612	Dun & Bradstreet d.o.o.
AS201395	IT-TIM d.o.o.
AS203618	UB330.net d.o.o.
AS210197	ROK TAJZEL
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS213115	MMITECH d.o.o.
AS214296	BETATEL LTD
AS22356	Durand do Brasil Ltda
AS25059	Nova Ljubljanska Banka d.d.
AS25066	Nova KBM d.d.
AS25467	Akton d.o.o.
AS263444	Open X Tecnologia Ltda
AS28682	Posta Slovenije d.o.o.
AS28850	Zavod za zdravstveno zavarovanje Slovenije
AS29049	Delta Telecom Ltd
AS29051	ELES, d.o.o.
AS31687	Perutnina Ptuj d.d.
AS3212	Telemach Slovenija d.o.o.
AS3303	Swisscom (Switzerland) Ltd
AS34367	Banka Slovenije
AS39120	Convergenze S.p.A.
AS39727	ZZI's AS Number
AS41505	Delavska hranilnica d.d. Ljubljana
AS41970	Zavod za pokojninsko in invalidsko zavarovanje Slovenije - ZPIZ
AS42473	Anexia Cloud Solutions GmbH
AS43061	Stelkom d.o.o.
AS43733	Viva Armenia CJSC
AS44968	IPROM d.o.o
AS47917	RTV Slovenija
AS47993	Bankart procesiranje placilnih instrumentov d.o.o. Ljubljana
AS48419	SALUS, Ljubljana, d.d.
AS48772	GLOBUS MARINE INTERNATIONAL d.o.o.
AS48894	Optimus IT d.o.o.
AS49659	SkyToll, a. s.
AS53062	ALT \| GRUPO BRASIL TECPAR
AS57463	NetIX Communications JSC
AS57517	Ministrstvo za notranje zadeve
AS6939	Hurricane Electric LLC
AS8447	A1 Telekom Austria AG
AS9498	BHARTI Airtel Ltd.

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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams	Name
AS6939	Hurricane Electric LLC
AS8447	A1 Telekom Austria AG

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ASN API & Database

Downstreams

There are 23 downstreams for this ASN.

Downstreams	Name
AS196846	A1 Slovenija telekomunikacijske storitve,d.d.
AS196895	Uprava Republike Slovenije za javna placila
AS197391	Tobacna Ljubljana d.o.o.
AS197907	AKSON, poslovno in informacijsko svetovanje, d.o.o.
AS198524	iLOL d.o.o.
AS198827	Elektro Gorenjska, podjetje za distribucijo elektricne energije, d.d.
AS199612	Dun & Bradstreet d.o.o.
AS210197	ROK TAJZEL
AS213115	MMITECH d.o.o.
AS214296	BETATEL LTD
AS25059	Nova Ljubljanska Banka d.d.
AS25066	Nova KBM d.d.
AS25467	Akton d.o.o.
AS29051	ELES, d.o.o.
AS31687	Perutnina Ptuj d.d.
AS34367	Banka Slovenije
AS39727	ZZI's AS Number
AS41970	Zavod za pokojninsko in invalidsko zavarovanje Slovenije - ZPIZ
AS44968	IPROM d.o.o
AS47917	RTV Slovenija
AS48419	SALUS, Ljubljana, d.d.
AS48894	Optimus IT d.o.o.
AS49659	SkyToll, a. s.

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ASN API & Database

Pingable IPs

610 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
146.212.81.46	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.98ms` from Ljubljana, SI
92.37.39.209	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.90ms` from Ljubljana, SI
146.212.199.87	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`1.06ms` from Ljubljana, SI
90.157.233.1	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.68ms` from Ljubljana, SI
46.164.48.229	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.97ms` from Ljubljana, SI
146.212.113.228	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`1.05ms` from Ljubljana, SI
46.164.19.139	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.98ms` from Ljubljana, SI
146.212.124.217	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`1.05ms` from Ljubljana, SI
62.84.233.7	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`1.04ms` from Ljubljana, SI
92.37.15.223	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.99ms` from Ljubljana, SI
146.212.90.232	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.95ms` from Ljubljana, SI
2a00:1a20:219f:fd47:c:29ff:fea3:9b6d	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`17.03ms` from Ljubljana, SI
146.212.131.119	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`5.45ms` from Ljubljana, SI
146.212.87.158	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.99ms` from Ljubljana, SI
92.37.10.194	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`1.16ms` from Ljubljana, SI
90.157.178.225	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`1.51ms` from Ljubljana, SI
212.18.61.31	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.99ms` from Ljubljana, SI
92.37.44.194	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.94ms` from Ljubljana, SI
146.212.13.207	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`1.04ms` from Ljubljana, SI
146.212.26.155	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`1.36ms` from Ljubljana, SI
46.164.16.121	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.97ms` from Ljubljana, SI
212.18.48.129	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.63ms` from Ljubljana, SI
92.37.116.156	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.97ms` from Ljubljana, SI
213.157.244.98	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`1.09ms` from Ljubljana, SI
46.164.60.92	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`1.18ms` from Ljubljana, SI

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
218.245.7.83	AS4847 China Networks Inter-Exchange	`2.12ms` from Beijing, CN
93.240.240.115	AS3320 Deutsche Telekom AG	`1.14ms` from Berlin, DE
157.92.35.99	AS3449 Universidad Nacional de Buenos Aires	`2.38ms` from Buenos Aires, AR
121.14.197.211	AS4134 CHINANET-BACKBONE	`3.27ms` from Guangzhou, CN
5.58.172.83	AS16223 MAXNET TELECOM, LTD	`5.55ms` from Kyiv, UA
105.168.170.35	AS37119 UNITEL SA	`0.80ms` from Luanda, AO
217.249.144.83	AS3320 Deutsche Telekom AG	`2.05ms` from Nuernberg, DE
177.62.3.51	AS26599 TELEFÔNICA BRASIL S.A	`4.42ms` from Osasco, BR
141.193.21.3	AS46997 Black Mesa Corporation	`0.27ms` from Piscataway, US
34.207.117.35	AS14618 Amazon.com, Inc.	`0.43ms` from Reston, US
114.16.78.115	AS2516 KDDI CORPORATION	`6.54ms` from Tokyo, JP
195.167.154.227	AS15694 Atman Sp. z o.o.	`0.37ms` from Warsaw, PL
74.96.179.19	AS701 Verizon Business	`2.05ms` from Ashburn, US
47.72.170.19	AS9500 One New Zealand Group Limited	`1.90ms` from Auckland, NZ
119.51.40.3	AS4837 CHINA UNICOM China169 Backbone	`4.71ms` from Changchun, CN
86.149.140.3	AS2856 British Telecommunications PLC	`4.02ms` from Erith, GB
83.246.41.3	AS24679 kyberio GmbH	`5.13ms` from Frankfurt am Main, DE
122.99.245.147	AS17878 DREAMMARK1	`1.14ms` from Incheon, KR
200.37.208.3	AS6147 INTEGRATEL PERÚ S.A.A.	`0.68ms` from Lima, PE
87.16.214.131	AS3269 Telecom Italia S.p.A.	`5.85ms` from Milan, IT
78.24.217.19	AS29182 JSC IOT	`0.37ms` from Moscow, RU
34.91.125.163	AS396982 Google LLC	`0.11ms` from Oudeschip, NL
81.23.36.243	AS34863 HEXANET SAS	`0.48ms` from Paris, FR
176.166.48.3	AS5410 Bouygues Telecom SA	`7.55ms` from Paris, FR
4.147.189.243	AS8075 Microsoft Corporation	`0.66ms` from Sydney, AU

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -f2 -m7 46.123.91.80

traceroute to 46.123.91.80 (46.123.91.80): 7 hops max, 52 byte packets

2 [] 178.18.237.10 16.469 ms

3 [AS8447] 195.3.64.149 16.562 ms

4 [AS8447] 195.3.64.166 16.723 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On January 19th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS21283 at robtex.

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