ASN AS21017 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21017?

AS21017 is listed under PJSC Rostelecom.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS21017 PJSC Rostelecom | IPGeolocation.io

ASN Lookup Tool

PJSC Rostelecom rt.ru

RU 7 Routes

AS Data

AS21017

AS21017 – PJSC Rostelecom

AS Number	21017
AS Name	VSI-AS
Organization	PJSC Rostelecom (org-jr8-ripe)
Country	RU
Website	rt.ru
Number of IPv4 Routes	7
Number of IPv6 Routes	0
ASN type	ISP
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	1970-01-01

ASN Intelligence API for production workflows

Use ASN data for AS21017 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
95.32.128.0/18	AS12389	PJSC Rostelecom	OJSC Rostelecom, Voronezh branch	16384
77.45.128.0/17	AS12389	PJSC Rostelecom	OJSC Rostelecom, Voronezh branch	32768
95.32.0.0/18	AS12389	PJSC Rostelecom	OJSC Rostelecom, Voronezh branch	16384
88.83.192.0/19	AS21017	PJSC Rostelecom	OJSC Rostelecom, Voronezh branch	8192
95.32.64.0/18	AS12389	PJSC Rostelecom	OJSC Rostelecom, Voronezh branch	16384
80.82.32.0/19	AS21017	PJSC Rostelecom	PJSC Rostelecom	8192
95.32.192.0/18	AS12389	PJSC Rostelecom	OJSC Rostelecom, Voronezh branch	16384

Raw Whois Response

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS21004 - AS21151'

as-block:       AS21004 - AS21151
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:27Z
last-modified:  2018-11-22T15:27:27Z
source:         RIPE

% Information related to 'AS21017'

% Abuse contact for 'AS21017' is 'abuse@rt.ru'

aut-num:        AS21017
org:            ORG-JR8-RIPE
as-name:        VSI-AS
descr:          PJSC "Rostelecom". Voronezh branch
remarks:        --------------------------
remarks:        UPSTREAMS
remarks:        --------------------------
mp-import:      afi ipv4.unicast from AS44237 action pref=100; accept ANY
mp-export:      afi ipv4.unicast to AS44237 announce AS-VSI2CTC
mp-import:      afi ipv6.unicast from AS44237 action pref=100; accept ANY
mp-export:      afi ipv6.unicast to AS44237 announce AS-VSI
remarks:        --------------------------
remarks:        CUSTOMERS
remarks:        --------------------------
mp-import:      afi ipv4.unicast from AS24923 action pref=100; accept AS-SETTC
mp-import:      afi ipv4.unicast from AS56557 action pref=100; accept AS56557
mp-import:      afi ipv4.unicast from AS57609 action pref=100; accept AS57609
mp-import:      afi ipv4.unicast from AS29651 action pref=100; accept AS29651
mp-import:      afi ipv4.unicast from AS8981 action pref=100; accept AS8981
mp-import:      afi ipv4.unicast from AS59660 action pref=100; accept AS59660
mp-export:      afi ipv4.unicast to AS24923 announce ANY
mp-export:      afi ipv4.unicast to AS56557 announce ANY
mp-export:      afi ipv4.unicast to AS57609 announce ANY
mp-export:      afi ipv4.unicast to AS29651 announce ANY
mp-export:      afi ipv4.unicast to AS8981 announce ANY
mp-export:      afi ipv4.unicast to AS59660 announce ANY
admin-c:        VSI8-RIPE
remarks:        --------------------------
remarks:        PEERING
remarks:        --------------------------
mp-import:      afi ipv4.unicast from AS9049 action pref=100; accept AS-VORONEZH
mp-export:      afi ipv4.unicast to AS9049 announce AS-VSI-CLNT
tech-c:         VSI8-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         ROSTELECOM-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2025-04-15T10:51:29Z
source:         RIPE

organisation:   ORG-JR8-RIPE
org-name:       PJSC Rostelecom
country:        RU
org-type:       LIR
address:        14 A, Sinopskaya nabereznaya
address:        191167
address:        S.Peterburg
address:        RUSSIAN FEDERATION
phone:          +7 499 999-82-83
fax-no:         +74999953619
admin-c:        PRTT1-RIPE
admin-c:        IE1277-RIPE
admin-c:        NM7547-RIPE
admin-c:        AA728-RIPE
abuse-c:        RTNC-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        ROSTELECOM-MNT
mnt-ref:        ROSNIIROS-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         ROSTELECOM-MNT
created:        2005-03-22T11:11:20Z
last-modified:  2025-08-12T04:03:18Z
source:         RIPE # Filtered

role:           VSI NOC
address:        OJSC Rostelecom Voronezh branch Network Operation Center
address:        35, Revolyutsii pr.
address:        394000
address:        Voronezh
address:        Russian Federation
phone:          +7 4732 531789
fax-no:         +7 4732 339352
admin-c:        AVF12-RIPE
admin-c:        ES5782-RIPE
admin-c:        EAS82-RIPE
tech-c:         AVF12-RIPE
tech-c:         ES5782-RIPE
tech-c:         EAS82-RIPE
nic-hdl:        VSI8-RIPE
mnt-by:         VSI-MNT
created:        2005-06-28T08:46:24Z
last-modified:  2012-01-26T05:24:05Z
source:         RIPE # Filtered
abuse-mailbox:  abuse@vsi.ru

% This query was served by the RIPE Database Query Service version 1.121.2 (BUSA)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS21004 - AS21151",
    "description" : [ "RIPE NCC ASN block" ],
    "remarks" : [ "These AS Numbers are assigned to network operators in the RIPE NCC service region." ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT" ],
    "date_created" : "2018-11-22",
    "date_updated" : "2018-11-22",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS21017",
    "as_name" : "VSI-AS",
    "description" : [ "PJSC \"Rostelecom\". Voronezh branch" ],
    "status" : "ASSIGNED",
    "mp_import" : [ "afi ipv4.unicast from AS44237 action pref=100; accept ANY", "afi ipv6.unicast from AS44237 action pref=100; accept ANY", "afi ipv4.unicast from AS24923 action pref=100; accept AS-SETTC", "afi ipv4.unicast from AS56557 action pref=100; accept AS56557", "afi ipv4.unicast from AS57609 action pref=100; accept AS57609", "afi ipv4.unicast from AS29651 action pref=100; accept AS29651", "afi ipv4.unicast from AS8981 action pref=100; accept AS8981", "afi ipv4.unicast from AS59660 action pref=100; accept AS59660", "afi ipv4.unicast from AS9049 action pref=100; accept AS-VORONEZH" ],
    "mp_export" : [ "afi ipv4.unicast to AS44237 announce AS-VSI2CTC", "afi ipv6.unicast to AS44237 announce AS-VSI", "afi ipv4.unicast to AS24923 announce ANY", "afi ipv4.unicast to AS56557 announce ANY", "afi ipv4.unicast to AS57609 announce ANY", "afi ipv4.unicast to AS29651 announce ANY", "afi ipv4.unicast to AS8981 announce ANY", "afi ipv4.unicast to AS59660 announce ANY", "afi ipv4.unicast to AS9049 announce AS-VSI-CLNT" ],
    "organization" : "ORG-JR8-RIPE",
    "admin_contacts" : [ "VSI8-RIPE" ],
    "tech_contacts" : [ "VSI8-RIPE" ],
    "remarks" : [ "--------------------------", "UPSTREAMS", "--------------------------", "--------------------------", "CUSTOMERS", "--------------------------", "--------------------------", "PEERING", "--------------------------" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "ROSTELECOM-MNT" ],
    "date_created" : "1970-01-01",
    "date_updated" : "2025-04-15",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-JR8-RIPE",
    "name" : "PJSC Rostelecom",
    "type" : "LIR",
    "address" : [ "14 A, Sinopskaya nabereznaya", "191167", "S.Peterburg", "RUSSIAN FEDERATION" ],
    "street" : "Sinopskaya Nabereznaya",
    "city" : "S.peterburg",
    "country" : [ "RU" ],
    "phone" : [ "+7 499 999-82-83" ],
    "fax_no" : [ "+74999953619" ],
    "admin_contacts" : [ "PRTT1-RIPE", "IE1277-RIPE", "NM7547-RIPE", "AA728-RIPE" ],
    "abuse_contacts" : [ "RTNC-RIPE" ],
    "mnt_ref" : [ "RIPE-NCC-HM-MNT", "ROSTELECOM-MNT", "ROSNIIROS-MNT" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "ROSTELECOM-MNT" ],
    "date_created" : "2005-03-22",
    "date_updated" : "2025-08-12",
    "source" : "RIPE",
    "addressCountry" : "RUSSIAN FEDERATION"
  },
  "administrative_contacts" : [ {
    "handle" : "VSI8-RIPE",
    "name" : "VSI NOC",
    "address" : [ "OJSC Rostelecom Voronezh branch Network Operation Center", "35, Revolyutsii pr.", "394000", "Voronezh", "Russian Federation" ],
    "city" : "Voronezh",
    "state" : "PR.",
    "zip_code" : "394000",
    "country" : "RUSSIAN FEDERATION",
    "abuse_mailbox" : [ "abuse@vsi.ru" ],
    "phone" : [ "+7 4732 531789" ],
    "fax_no" : [ "+7 4732 339352" ],
    "admin_contacts" : [ "AVF12-RIPE", "ES5782-RIPE", "EAS82-RIPE" ],
    "tech_contacts" : [ "AVF12-RIPE", "ES5782-RIPE", "EAS82-RIPE" ],
    "mnt_by" : [ "VSI-MNT" ],
    "date_created" : "2005-06-28",
    "date_updated" : "2012-01-26",
    "source" : "RIPE",
    "addressCountry" : "RUSSIAN FEDERATION"
  } ],
  "technical_contacts" : [ {
    "handle" : "VSI8-RIPE",
    "name" : "VSI NOC",
    "address" : [ "OJSC Rostelecom Voronezh branch Network Operation Center", "35, Revolyutsii pr.", "394000", "Voronezh", "Russian Federation" ],
    "city" : "Voronezh",
    "state" : "PR.",
    "zip_code" : "394000",
    "country" : "RUSSIAN FEDERATION",
    "abuse_mailbox" : [ "abuse@vsi.ru" ],
    "phone" : [ "+7 4732 531789" ],
    "fax_no" : [ "+7 4732 339352" ],
    "admin_contacts" : [ "AVF12-RIPE", "ES5782-RIPE", "EAS82-RIPE" ],
    "tech_contacts" : [ "AVF12-RIPE", "ES5782-RIPE", "EAS82-RIPE" ],
    "mnt_by" : [ "VSI-MNT" ],
    "date_created" : "2005-06-28",
    "date_updated" : "2012-01-26",
    "source" : "RIPE",
    "addressCountry" : "RUSSIAN FEDERATION"
  } ]
}

Peers

AS Number	Description	Country
AS29651	RIPE Network Coordination Centre	NL
AS12389	PJSC Rostelecom	RU
AS8981	Federal State Budgetary Educational Institution of Higher Education Voronezh State University	RU
AS9049	JSC ER Telecom Holding	RU
AS24923	Joint Stock Company TransTeleCom	RU
AS59660	DataArt Technologies UK Ltd	GB
AS57609	Lubyatovo LLC	RU
AS56557	Department of Digital Development of the Voronezh region	RU
AS44237	PJSC Rostelecom	RU

Upstreams

AS Number	Description	Country
AS12389	PJSC Rostelecom	RU