AS1887
NAUKOWA I AKADEMICKA SIEC KOMPUTEROWA - PANSTWOWY INSTYTUT BADAWCZY
Registration
IPv4 Prefixes
2 prefixes · 81,920 addresses Routing data as of 2026-10-08 00:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 148.81.0.0/16 | 148.81.0.0 – 148.81.255.255 | 65,536 |
| 195.187.64.0/18 | 195.187.64.0 – 195.187.127.255 | 16,384 |
IPv6 Prefixes
1 prefix · 65,536 × /48 Routing data as of 2026-10-08 00:00 UTC
| Prefix | Addresses |
|---|---|
| 2a00:1488:: | 296 |
BGP Neighbours
26 unique neighbours · 2 upstream/peer · 24 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams). Upstream & peer side (2)
Downstream side (24)
AS Name AS paths IPv4 sightings IPv6 sightings AS15665 WOLA-AS Instytut Geofizyki PAN 374 1,730 0 AS44959 UKSW-AS Uniwersytet Kardynala Stefana Wyszynskiego 277 1,055 0 AS207204 CNK Centrum Nauki Kopernik 275 349 0 AS24597 ITL-AS Instytut Lacznosci - Panstwowy Instytut Badawczy 274 51 345 AS197005 IERIGZ-AS Instytut Ekonomiki Rolnictwa i Gospodarki Zywnosciowej Panstwowy Instytut Badawczy 274 349 0 AS41092 IGICHP INSTITUTE OF TUBERCULOSIS AND LUNG DISEASES 273 347 0 AS8766 SGH-PL Szkola Glowna Handlowa w Warszawie 272 349 0 AS196802 WAT-AS Wojskowa Akademia Techniczna im. Jaroslawa Dabrowskiego 272 694 0 AS201305 WILWAW WOJSKOWY INSTYTUT LACZNOSCI 266 343 0 AS206802 UMFC UNIWERSYTET MUZYCZNY FRYDERYKA CHOPINA 257 330 0 AS201617 ILOT SIEC BADAWCZA LUKASIEWICZ-INSTYTUT LOTNICTWA 209 268 0 AS12464 PW-NET Politechnika Warszawska 208 798 0 AS197982 PJWSTK Polsko-Japonska Wyzsza Szkola Technik Komputerowych 168 660 0 AS25075 SWPS SWPS UNIWERSYTET 97 137 0 AS213088 CMKP Centrum Medyczne Ksztalcenia Podyplomowego 85 106 0 AS209314 ASP Akademia Sztuk Pieknych w Warszawie 83 162 51 AS15606 NASK-DNS-ANYCAST NAUKOWA I AKADEMICKA SIEC KOMPUTEROWA - PANSTWOWY INSTYTUT BADAWCZY 46 62 27 AS25495 SEJM-AS Kancelaria Sejmu 32 45 0 AS198522 MSW-REG Ministerstwo Spraw Wewnetrznych i Administracji 27 39 0 AS202748 mos-gov-pl Ministerstwo Klimatu i Srodowiska 27 39 0 AS47404 WSPIZ-AS Akademia Leona Kozminskiego 22 34 0 AS202121 PW-PLOCK Politechnika Warszawska Filia w Plocku 21 31 0 AS201125 IFPS Instytut Fizjologii i Patologii Sluchu 20 32 0 AS20555 WIT Akademia WIT w Warszawie 9 17 0
Raw RDAP Response
{
"handle": "AS1887",
"startAutnum": 1887,
"endAutnum": 1887,
"name": "NASK-ACADEMIC",
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{
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{
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{
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{
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"roles": [
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},
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"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
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],
"objectClassName": "entity"
},
{
"handle": "TM3779-RIPE",
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{},
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"roles": [
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],
"links": [
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"value": "https://rdap.db.ripe.net/autnum/1887",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/TM3779-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
}
],
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}
],
"remarks": [
{
"description": [
"Academic clients only.",
"",
"Looking-glass at http://www.nask.pl/lg.html",
"------------------------------",
"Local-preferences",
"100 - Customers",
"50 - Local peerings",
"49 - Local peerings",
"35 - Settable by customers or local peerings (see communities)",
"30 - IXP peerings",
"10 - Uplinks",
"9 - Uplinks",
"Communities used in AS1887",
"(Under reconstruction, these values will change soon)",
"Settable communities:",
"1887:55035 - local-preference is lowered to 35",
"Read-only communities marking prefix origin:",
"1887:60000, 1887:60100 - Customers",
"1887:60010 - Uplinks",
"1887:60050 - Local peerings",
"1887:8501 - POL34 (but only peering link)"
]
}
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/1887",
"rel": "rdap-up",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS1887",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/1887",
"rel": "rdap-up rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS1887?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/1887",
"rel": "rdap-down",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS1887",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/1887",
"rel": "rdap-top",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS1887",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/1887",
"rel": "rdap-top rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS1887?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/1887",
"rel": "rdap-bottom",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS1887",
"type": "application/rdap+json"
},
{
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"rel": "self",
"href": "https://rdap.db.ripe.net/autnum/1887",
"type": "application/rdap+json"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2002-07-29T14:22:02Z"
},
{
"eventAction": "last changed",
"eventDate": "2019-12-04T11:17:12Z"
}
],
"rdapConformance": [
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"rirSearch1",
"autnums",
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"nro_rdap_profile_0",
"redacted"
],
"notices": [
{
"title": "Filtered",
"description": [
"This output has been filtered."
]
},
{
"title": "Whois Inaccuracy Reporting",
"description": [
"If you see inaccuracies in the results, please visit:"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/1887",
"rel": "inaccuracy-report",
"href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true",
"type": "text/html"
}
]
},
{
"title": "Source",
"description": [
"Objects returned came from source",
"RIPE"
]
},
{
"title": "Terms and Conditions",
"description": [
"This is the RIPE Database query service. The objects are in RDAP format."
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/1887",
"rel": "terms-of-service",
"href": "http://www.ripe.net/db/support/db-terms-conditions.pdf",
"type": "application/pdf"
}
]
}
],
"port43": "whois.ripe.net",
"objectClassName": "autnum",
"redacted": [
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='NASK1-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
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},
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"method": "removal"
}
]
} Contact details of private individuals are redacted.