AS101 · 
US — University of Washington
· View prefixes · Compare ASN · Export prefixes
WASH-NSF-AS · ARIN · US
Selected local snapshot coverage; not the whole Internet. BGP snapshots: ris-rrc00 10 Oct 16:00 UTC; routeviews2 10 Oct 22:00 UTC; routeviews6 10 Oct 22:00 UTC. Validator: 10 Oct 23:15 UTC. Publication-point issues: 88
Address space details
Overlapping originated prefixes counted once. IPv4 addresses: 4,096
IPv6 addresses: 79228162514264337593543950336
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Observed originated prefixes
These are observed BGP origins, not an inventory of registered allocations or transit reachability.
3 matching prefix–origin pairs. Each pair appears once; source observations are in Details.
| Prefix | RPKI | Last observed | Details |
|---|---|---|---|
Valid | 10 Oct 22:00 UTC | 2 source observations
| |
Valid | 10 Oct 22:00 UTC | 2 source observations
| |
Valid | 10 Oct 22:00 UTC | 2 source observations
|
Observed AS neighbors
14 unique neighbors in the selected local snapshots. This is the available collector dataset, not a complete map of the Internet. Adjacency does not establish upstream service or peering.
14 matching neighbors · 1–14 shown
| Network | IPv4/IPv6 | Seen in | Last observed | Details |
|---|---|---|---|---|
AS73 · US University of Washington | IPv4 | ris-rrc00, routeviews2 | 10 Oct 22:00 UTC | Source observations
|
AS174 · US Cogent Communications, LLC | IPv4 | ris-rrc00 | 10 Oct 16:00 UTC | Source observations
|
AS6939 · US Hurricane Electric LLC | IPv4 | routeviews2 | 10 Oct 22:00 UTC | Source observations
|
AS10430 · US WA-K20 - Washington State K-20 Telecommunications Network | IPv4 | ris-rrc00, routeviews2 | 10 Oct 22:00 UTC | Source observations
|
AS11164 · US INTERNET2-I2PX - Internet2 | IPv4 | ris-rrc00, routeviews2 | 10 Oct 22:00 UTC | Source observations
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AS11548 · US HERITAGE-UNIV-AS - Heritage University | IPv4 | ris-rrc00, routeviews2 | 10 Oct 22:00 UTC | Source observations
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AS11956 · US NOAA-XWAVE - National Oceanic and Atmospheric Administration | IPv4 | ris-rrc00, routeviews2 | 10 Oct 22:00 UTC | Source observations
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AS13476 · US MSU-BOZEMAN - Montana State University | IPv4 | ris-rrc00, routeviews2 | 10 Oct 22:00 UTC | Source observations
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AS14221 · US UW-GR-AS - University of Washington | IPv4 | ris-rrc00, routeviews2 | 10 Oct 22:00 UTC | Source observations
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AS14954 · US FHCRC - The Fred Hutchinson Cancer Research Center | IPv4 | ris-rrc00, routeviews2 | 10 Oct 22:00 UTC | Source observations
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AS17200 · US SEATTLECOLL - Seattle Community College District | IPv4 | ris-rrc00, routeviews2 | 10 Oct 22:00 UTC | Source observations
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AS19014 · US NORCOM - NORCOM | IPv4 | ris-rrc00, routeviews2 | 10 Oct 22:00 UTC | Source observations
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AS39941 · US PACIFIC-WAVE - Pacific Wave | IPv4 | ris-rrc00, routeviews2 | 10 Oct 22:00 UTC | Source observations
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AS40272 · US ALLENINSTITUTE - Allen Institute | IPv4 | ris-rrc00, routeviews2 | 10 Oct 22:00 UTC | Source observations
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View observed neighbor graph (up to 15 AS nodes)
Lines mean observed adjacency, with no commercial direction inferred. The table above provides the same evidence and source times.
Showing 14 of 14 matching neighbors, in table sort order, independent of table page.
Peering & locations
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Registry information
ARIN · fetched 10 Oct 21:05 UTC
- Resource name
- WASH-NSF-AS
- Handle
- AS101
- RDAP country
- Not supplied
- ASN
- 101
Registered organizations
Last Changed: 02 Oct 2021 00:46 UTC
Registration: 31 Mar 1987 05:00 UTC
Registry contacts and maintainers
- UW-NOC-ARIN · technical
Allocation statistics
NRO/RIR delegated-extended records describe allocation or assignment ranges. They do not prove a BGP announcement or replace more-specific RDAP registration information. Country is the allocation record’s registration country, not the physical location of every address.
- AS101–AS101 · arin · assigned · ASN allocation country: US · Allocation date: 1987-03-31 — NRO/RIR data · snapshot 10 Oct 00:00 UTC
Prefix count history
Local observation changes
Only comparable successful snapshots are compared. First imports, changed peer coverage and collection gaps are baselines, not new global routes or withdrawals. RPKI transition history is not available before it has been recorded.
No retained changes are available for this resource.
Retained local prefix-count observations
Separate collector series. Missing rows are not zero. Peer-set changes are separate coverage, not a continuous trend.
| Source | Snapshot | Family | Prefixes | Peer coverage |
|---|---|---|---|---|
routeviews2 | 10 Oct 22:00 UTC | IPv4 | 3 | 140.192.8.16/IPv4 |
routeviews6 | 10 Oct 22:00 UTC | IPv6 | 4 | 2406:840:feed:2::1/IPv6 |
routeviews2 | 10 Oct 20:00 UTC | IPv4 | 3 | 140.192.8.16/IPv4 |
routeviews6 | 10 Oct 20:00 UTC | IPv6 | 4 | 2406:840:feed:2::1/IPv6 |
ris-rrc00 | 10 Oct 16:00 UTC | IPv4 | 3 | 2a00:5884::6/IPv6, 89.234.186.6/IPv4 |
ris-rrc00 | 10 Oct 16:00 UTC | IPv6 | 3 | 2a00:5884::6/IPv6, 89.234.186.6/IPv4 |
ris-rrc00 | 10 Oct 08:00 UTC | IPv4 | 3 | 2a00:5884::6/IPv6, 89.234.186.6/IPv4 |
ris-rrc00 | 10 Oct 08:00 UTC | IPv6 | 3 | 2a00:5884::6/IPv6, 89.234.186.6/IPv4 |