What is ASN AS198839?

ASN AS198839 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS198839?

AS198839 is listed under SysLevel SAS.

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.

AS198839 SysLevel SAS | IPGeolocation.io

ASN Lookup Tool

SysLevel SAS syslevel.net

FR 2 Routes

AS Data

AS198839

AS198839 – SysLevel SAS

AS Number	198839
AS Name	MCASYS
Organization	SysLevel SAS (org-ss1267-ripe)
Country	FR
Website	syslevel.net
Number of IPv4 Routes	1
Number of IPv6 Routes	1
ASN type	ISP
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2026-04-16

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Use ASN data for AS198839 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2a12:8ac0:1000::/40	AS198839	SysLevel SAS	SYSLEVEL SAS	~309×10²⁴
81.27.84.0/24	AS198839	SysLevel SAS	SYSLEVEL SAS	256

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 'AS198305 - AS199072'

as-block:       AS198305 - AS199072
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:        2026-02-18T10:24:00Z
last-modified:  2026-02-18T10:24:00Z
source:         RIPE

% Information related to 'AS198839'

% Abuse contact for 'AS198839' is 'abuse@syslevel.net'

aut-num:        AS198839
as-name:        MCASYS
remarks:        --
remarks:        --
remarks:        =======================
remarks:        ==== BGP Upstreams ====
remarks:        =======================
remarks:        --
remarks:        // MilkyWan
mp-import:      afi ipv4.unicast,ipv6.unicast from AS2027 action pref=200; med=400; accept ANY
mp-export:      afi ipv4.unicast,ipv6.unicast to AS2027 announce AS198839
remarks:        --
remarks:        // SysLevel
mp-import:      afi ipv4.unicast,ipv6.unicast from AS57797 action pref=180; med=400; accept ANY
mp-export:      afi ipv4.unicast,ipv6.unicast to AS57797 announce AS198839
remarks:        --
remarks:        // Virtua Systems
mp-import:      afi ipv4.unicast,ipv6.unicast from AS35661 action pref=180; med=400; accept ANY
mp-export:      afi ipv4.unicast,ipv6.unicast to AS35661 announce AS198839
remarks:        --
remarks:        // HolyCloud
mp-import:      afi ipv4.unicast,ipv6.unicast from AS198831 action pref=200; med=400; accept ANY
mp-export:      afi ipv4.unicast,ipv6.unicast to AS198831 announce AS198839
remarks:        --
remarks:        --
org:            ORG-SS1267-RIPE
admin-c:        SLAC-EU
tech-c:         SLTC-EU
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         syslevel-noc-mnt
created:        2026-04-16T12:39:51Z
last-modified:  2026-05-13T19:55:38Z
source:         RIPE

organisation:   ORG-SS1267-RIPE
org-name:       SysLevel SAS
country:        FR
reg-nr:         909 891 830  R.C.S. PARIS
org-type:       LIR
address:        15 rue des Halles
address:        75001
address:        Paris
address:        FRANCE
phone:          +33189162930
admin-c:        SLAC-EU
tech-c:         SLTC-EU
abuse-c:        SLAB-EU
mnt-ref:        syslevel-noc-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         syslevel-noc-mnt
created:        2022-02-17T13:55:15Z
last-modified:  2026-05-13T07:42:45Z
source:         RIPE # Filtered

role:           SysLevel Admin Contact
address:        Paris, France
org:            ORG-SYSL1-RIPE
nic-hdl:        SLAC-EU
mnt-by:         syslevel-noc-mnt
created:        2021-12-25T22:41:29Z
last-modified:  2026-05-14T22:46:43Z
source:         RIPE # Filtered

role:           SysLevel Technical Contact
address:        Paris, France
org:            ORG-SYSL1-RIPE
nic-hdl:        SLTC-EU
mnt-by:         syslevel-noc-mnt
created:        2021-12-25T22:40:29Z
last-modified:  2026-05-14T22:46:59Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.122.1 (ABERDEEN)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS198305 - AS199072",
    "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" : "2026-02-18",
    "date_updated" : "2026-02-18",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS198839",
    "as_name" : "MCASYS",
    "status" : "ASSIGNED",
    "mp_import" : [ "afi ipv4.unicast,ipv6.unicast from AS2027 action pref=200; med=400; accept ANY", "afi ipv4.unicast,ipv6.unicast from AS57797 action pref=180; med=400; accept ANY", "afi ipv4.unicast,ipv6.unicast from AS35661 action pref=180; med=400; accept ANY", "afi ipv4.unicast,ipv6.unicast from AS198831 action pref=200; med=400; accept ANY" ],
    "mp_export" : [ "afi ipv4.unicast,ipv6.unicast to AS2027 announce AS198839", "afi ipv4.unicast,ipv6.unicast to AS57797 announce AS198839", "afi ipv4.unicast,ipv6.unicast to AS35661 announce AS198839", "afi ipv4.unicast,ipv6.unicast to AS198831 announce AS198839" ],
    "organization" : "ORG-SS1267-RIPE",
    "admin_contacts" : [ "SLAC-EU" ],
    "tech_contacts" : [ "SLTC-EU" ],
    "remarks" : [ "--", "--", "=======================", "==== BGP Upstreams ====", "=======================", "--", "// MilkyWan", "--", "// SysLevel", "--", "// Virtua Systems", "--", "// HolyCloud", "--", "--" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "syslevel-noc-mnt" ],
    "date_created" : "2026-04-16",
    "date_updated" : "2026-05-13",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-SS1267-RIPE",
    "name" : "SysLevel SAS",
    "type" : "LIR",
    "address" : [ "15 rue des Halles", "75001", "Paris", "FRANCE" ],
    "street" : "Rue Des Halles",
    "city" : "Paris",
    "zip_code" : "75001",
    "country" : [ "FR" ],
    "phone" : [ "+33189162930" ],
    "admin_contacts" : [ "SLAC-EU" ],
    "tech_contacts" : [ "SLTC-EU" ],
    "abuse_contacts" : [ "SLAB-EU" ],
    "mnt_ref" : [ "syslevel-noc-mnt" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "syslevel-noc-mnt" ],
    "date_created" : "2022-02-17",
    "date_updated" : "2026-05-13",
    "source" : "RIPE",
    "addressCountry" : "FRANCE"
  },
  "administrative_contacts" : [ {
    "handle" : "SLAC-EU",
    "name" : "SysLevel Admin Contact",
    "address" : [ "Paris, France" ],
    "city" : "Paris",
    "country" : "FRANCE",
    "organizations" : [ "ORG-SYSL1-RIPE" ],
    "mnt_by" : [ "syslevel-noc-mnt" ],
    "date_created" : "2021-12-25",
    "date_updated" : "2026-05-14",
    "source" : "RIPE",
    "addressCountry" : "FRANCE"
  } ],
  "technical_contacts" : [ {
    "handle" : "SLTC-EU",
    "name" : "SysLevel Technical Contact",
    "address" : [ "Paris, France" ],
    "city" : "Paris",
    "country" : "FRANCE",
    "organizations" : [ "ORG-SYSL1-RIPE" ],
    "mnt_by" : [ "syslevel-noc-mnt" ],
    "date_created" : "2021-12-25",
    "date_updated" : "2026-05-14",
    "source" : "RIPE",
    "addressCountry" : "FRANCE"
  } ]
}

Peers

AS Number	Description	Country
AS2027	MilkyWan Association	FR
AS35661	VIRTUA SYSTEMS SAS	FR
AS198831	HOLYCLOUD	FR
AS212895	Johannes Ernst	DE
AS57797	SysLevel SAS	FR
AS198831	GENIUSWEER SAS	FR

Upstreams

AS Number	Description	Country
AS212895	Johannes Ernst	DE