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AS1921

RCODEZERO-ANYCAST-SEC1-TLD

RcodeZero Anycast DNS

Registry

Authoritative registration data

AS number
1921
Name
RCODEZERO-ANYCAST-SEC1-TLD
Organisation
RcodeZero Anycast DNS
Country
—
RIR
RIPE
Registered
Source:asn:rdap retrieved

IPv4 prefixes

16

IPv6 prefixes

16

Total announced

32

Announced prefixes

Observed in BGP by route collectors, not a registry allocation list

Prefixes announced by AS1921
176.97.158.0/24 IPv4 /24 not checked
185.102.12.0/24 IPv4 /24 not checked
185.167.176.0/24 IPv4 /24 not checked
185.80.188.0/24 IPv4 /24 not checked
185.80.190.0/24 IPv4 /24 not checked
185.80.191.0/24 IPv4 /24 not checked
192.174.68.0/24 IPv4 /24 not checked
193.227.117.0/24 IPv4 /24 RPKI valid
193.46.128.0/24 IPv4 /24 RPKI valid
193.46.133.0/24 IPv4 /24 not checked
193.46.134.0/24 IPv4 /24 RPKI valid
193.46.135.0/24 IPv4 /24 not checked
194.0.182.0/24 IPv4 /24 RPKI valid
194.0.25.0/24 IPv4 /24 not checked
194.50.187.0/24 IPv4 /24 RPKI valid
91.237.67.0/24 IPv4 /24 RPKI not found
2001:678:20::/48 IPv6 /48 RPKI valid
2001:67c:10b8::/48 IPv6 /48 not checked
2001:67c:1bc::/48 IPv6 /48 not checked
2a02:850:ffe0::/48 IPv6 /48 RPKI valid
2a02:850:ffe5::/48 IPv6 /48 not checked
2a02:850:ffe6::/48 IPv6 /48 not checked
2a02:850:ffe7::/48 IPv6 /48 not checked
2a02:850:ffff::/48 IPv6 /48 RPKI valid
2a04:2b00:14cc::/48 IPv6 /48 RPKI valid
2a04:2b00:14dd::/48 IPv6 /48 RPKI valid
2a04:2b00:14ee::/48 IPv6 /48 not checked
2a05:7f00:188::/48 IPv6 /48 RPKI valid
2a05:7f00:190::/48 IPv6 /48 not checked
2a05:7f00:191::/48 IPv6 /48 not checked
2a0b:8e00:1::/48 IPv6 /48 RPKI not found
2a0b:8e00::/48 IPv6 /48 RPKI not found

No rows match “”.

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Source:ripestat:announced-prefixes observed

Internet Exchanges

Exchanges where this network has a listed peering LAN connection

Internet Exchange memberships listed for AS1921
Address families
AAIX 10,000 Mbps IPv4 · IPv6
BNIX 10,000 Mbps IPv4 · IPv6
GigaPIX - LAN 1: LAN1 10,000 Mbps IPv4 · IPv6
LINX LON1: Main 1,000 Mbps IPv4 · IPv6
LU-CIX 10,000 Mbps IPv4 · IPv6
RIX 10,000 Mbps IPv4 · IPv6
Rheintal IX: Peering-LAN 1,000 Mbps IPv4 · IPv6
SIX SI 10,000 Mbps IPv4 · IPv6
SwissIX: Peering 10,000 Mbps IPv4 · IPv6
TREX Tampere: Unicast Peering 10,000 Mbps IPv4 · IPv6

No rows match “”.

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Source:peeringdb retrieved

Exchange membership means the network has a listed connection; it does not prove peering with other members.

Observed adjacencies

Networks seen next to AS1921 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

54 networks seen before AS1921 in AS paths

Observed upstreams
Families
AS20473 AS-VULTR 224 2,355
v4 v6
AS29014 SCALEUP 359 1,253
v4 v6
AS56655 GIGAHOST 343 765
v4 v6
AS44066 DE-FIRSTCOLO 81 687
v4 v6
AS49544 i3Dnet 65 580
v4 v6
AS6939 HURRICANE 299 473
v4 v6
AS29222 Infomaniak-AS 38 448
v4 v6
AS7195 7195 28 273
v4 v6
AS30971 NICAT-CORE-AS 22 242
v4 v6
AS5459 LINX-AS 141 199
v4 v6
AS42473 AS-ANEXIA 30 164
v4 v6
AS42708 GLESYS 14 134
v4 v6
AS36236 NETACTUATE 18 114
v4 v6
AS56630 MELBICOM-EU-AS 17 106
v4 v6
AS22548 ASN22548 17 91
v4 v6
AS199524 GCORE 10 90
v4 v6
AS55803 HOSTOPIA-AU 10 88
v4 v6
AS8849 MELBICOM-EU-AS 10 69
v4 v6
AS48362 TKSWF-AS 4 58
v4 v6
AS25091 IP-Max 12 40
v4 v6
AS8308 NASK-COMMERCIAL 5 37
v4 v6
AS12779 ITGATE 4 25
v4 v6
AS60171 AFRIX-AS 3 22
v4 v6
AS8298 IPNG 2 20
v4 v6
AS5405 INTERDOTLINK 7 19
v4 v6
AS42310 IEDR 5 18
v4 v6
AS34927 iFog-GmbH 5 13
v4 v6
AS14840 ASN14840 3 13
v4 v6
AS3214 XTOM 3 12
v4 v6
AS33891 CORE-BACKBONE 9 11
v4
AS1836 GREEN 1 10
v4 v6
AS9002 RETN-AS 5 9
v6
AS35280 F5 5 8
v4 v6
AS41327 FIBERTELECOM-AS 4 8
v4 v6
AS34549 MEER-AS 5 7
v4 v6
AS50304 BLIX 5 6
v4
AS34177 CELESTE-AS 4 6
v4 v6
AS15802 DU-AS1 3 6
v4
AS6797 GLOBALCONNECT-NET 2 6
v4 v6
AS29075 IELO 3 5
v4 v6
AS4601 DNET 1 5
v6
AS37497 ORG-NPL3-AFRINIC 4 4
v4
AS4455 BSO 3 4
v4 v6
AS3216 SOVAM-AS 3 3
v4
AS37468 ORG-AC4-AFRINIC 3 3
v4
AS37100 ORG-SL75-AFRINIC 2 3
v4
AS1031 PEER1-1031 2 2
v4
AS3741 ORG-DD1-AFRINIC 2 2
v4
AS55850 MERCURYNZ-AS-AP 2 2
v4
AS9044 SOLNET 1 2
v4
AS4657 STARHUB-INTERNET 1 1
v4
AS6204 ZET-NET 1 1
v4
AS15958 CETIN_doo_AS 1 1
v4
AS21215 UGNI 1 1
v4

No rows match “”.

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Observed downstreams

3 networks seen after AS1921 in AS paths

Observed downstreams
Families
AS35052 AS_AT_TLD_SERVICES 140 291
v4 v6
AS11644 ASN11644 30 77
v4 v6
AS12136 ASN12136 7 10
v4 v6

No rows match “”.

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Uncertain adjacencies

55 adjacencies that may be an artefact of collector peering

Uncertain adjacencies
Families
AS24482 SGGS-AS-AP 3 34
v4 v6
AS62167 Tismi 3 32
v4 v6
AS48185 team_blue 2 30
v4 v6
AS59890 Kabel-TV-Lampert 1 24
v4 v6
AS6830 LibertyGlobal 3 21
v4 v6
AS212483 level86 2 20
v4 v6
AS20612 SWISSIX 1 20
v4 v6
AS58057 SECUREBIT 1 15
v4 v6
AS1828 UNITAS 3 14
v4 v6
AS3170 VELOXSERV 3 14
v4 v6
AS6424 EDGOO 3 14
v4 v6
AS48070 DSM 3 14
v4 v6
AS50300 CUSTDC 3 14
v4 v6
AS3212 TELEMACH 1 14
v4 v6
AS45049 WAN4YOU 1 14
v4 v6
AS49432 SCHALLERT-AS 1 14
v4 v6
AS14630 INVESCO 3 13
v4 v6
AS25160 VORBOSS 3 13
v4 v6
AS34288 AS34288 2 12
v4 v6
AS6730 SUNRISE 1 12
v4 v6
AS207841 INFERNO 3 10
v4 v6
AS198150 SIACOM-AS 2 10
v4 v6
AS12307 RAVANA 1 10
v4 v6
AS15623 CYBERLINK 1 10
v4 v6
AS21232 GGAMAUR 1 10
v4 v6
AS51873 AS-ARCADE 1 10
v4 v6
AS59414 CLOUDSCALE 1 10
v4 v6
AS196621 FREESTONE 1 10
v4 v6
AS198385 AlpineDC 1 10
v4 v6
AS209823 ENKI-AS 1 10
v4 v6
AS51185 MAINSTREAMING-AS 3 9
v4 v6
AS35266 EXN-AS 2 9
v4 v6
AS12969 Vodafone_Iceland 3 8
v4
AS31742 SOTACONNECT 1 8
v4 v6
AS28792 PUBLIC-INTERNET 3 7
v4
AS31122 DIGIWEB-AS 3 7
v6
AS37680 ORG-CIc1-AFRINIC 3 7
v4
AS39122 BLACKNIGHT-AS 3 7
v4 v6
AS20932 SIG-ST 1 6
v4 v6
AS8218 NEO-ASN 1 5
v6
AS47147 AS-ANX 1 5
v6
AS59891 FSIT 1 5
v4
AS198249 OPSONE 1 5
v6
AS202032 GOLINE 1 5
v4
AS6667 EUNET-FINLAND 2 4
v4 v6
AS61573 ASN61573 2 4
v4 v6
AS6894 KDDI-EUROPE 1 4
v6
AS16347 INHERENT 2 3
v4
AS37721 ORG-VTS1-AFRINIC 2 3
v4
AS263152 ASN263152 2 2
v4
AS271253 ASN271253 2 2
v4
AS8529 OMANTEL-AS 1 2
v6
AS17639 CONVERGE-AS 1 1
v4
AS18106 VIEWQWEST-SG-AP 1 1
v4
AS213241 TECHIT 1 1
v6

No rows match “”.

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Note:
These are observed adjacencies derived from BGP path data, not confirmed commercial relationships. A network appearing before another in an AS path does not establish that it is a paying transit customer, a settlement free peer, or anything else contractual. Adjacencies marked uncertain were seen only as direct peers of a route collector, so the collector's own peering may have created them.