[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CANARIE (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sun Mar 9 22:30:43 UTC 2025
IPv4 R&E Routing Table Report 22:30 GMT Sun 09 Mar, 2025
IPv4 BGP Table (R&E) as seen at CANARIE.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/CANARIE/
Analysis Summary
----------------
BGP routing table entries examined: 19564
Prefixes after maximum aggregation (per Origin AS): 10861
Deaggregation factor: 1.80
Unique aggregates announced (without unneeded subnets): 12103
Number of IPv4 prefixes with a valid ROA: 7697
Number of IPv4 prefixes with an invalid ROA: 24
Number of IPv4 prefixes with no ROA: 11843
Total ASes present in the Internet Routing Table: 2830
Prefixes per ASN: 6.91
Origin-only ASes present in the Internet Routing Table: 2457
Origin ASes announcing only one prefix: 1074
Transit ASes present in the Internet Routing Table: 373
Transit-only ASes present in the Internet Routing Table: 63
Paths with bogon ASNs present in the IPv4 Routing Table: 8
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 18
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 7
Number of instances of unregistered ASNs: 7
Number of 32-bit ASNs allocated by the RIRs: 46183
Number of 32-bit ASNs visible in the Routing Table: 705
Prefixes from 32-bit ASNs in the Routing Table: 1912
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 3
Number of addresses announced to Internet: 203169935
Equivalent to 12 /8s, 28 /16s and 32 /24s
Percentage of available address space announced: 5.5
Percentage of allocated address space announced: 5.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 2389
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4849
Total APNIC prefixes after maximum aggregation: 2323
APNIC Deaggregation factor: 2.09
Prefixes being announced from the APNIC address blocks: 4848
Unique aggregates announced from the APNIC address blocks: 2687
APNIC Region origin ASes present in the Internet Routing Table: 596
APNIC Prefixes per ASN: 8.13
APNIC Region origin ASes announcing only one prefix: 245
APNIC Region transit ASes present in the Internet Routing Table: 58
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 14
Number of APNIC region 32-bit ASNs visible in the Routing Table: 241
Number of APNIC addresses announced to Internet: 45584488
Equivalent to 2 /8s, 183 /16s and 144 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-155961
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 8453
Total ARIN prefixes after maximum aggregation: 4959
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 8470
Unique aggregates announced from the ARIN address blocks: 5554
ARIN Region origin ASes present in the Internet Routing Table: 1306
ARIN Prefixes per ASN: 6.49
ARIN Region origin ASes announcing only one prefix: 456
ARIN Region transit ASes present in the Internet Routing Table: 163
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 224
Number of ARIN addresses announced to Internet: 92941697
Equivalent to 5 /8s, 138 /16s and 45 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8,
67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8,
74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8,
100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8,
131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8,
139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8,
148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8,
159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8,
167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8,
184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8,
207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 3569
Total RIPE prefixes after maximum aggregation: 2857
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3559
Unique aggregates announced from the RIPE address blocks: 2928
RIPE Region origin ASes present in the Internet Routing Table: 658
RIPE Prefixes per ASN: 5.41
RIPE Region origin ASes announcing only one prefix: 292
RIPE Region transit ASes present in the Internet Routing Table: 103
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 150
Number of RIPE addresses announced to Internet: 58047760
Equivalent to 3 /8s, 117 /16s and 189 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8,
81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8,
88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8,
95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8,
185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 1580
Total LACNIC prefixes after maximum aggregation: 548
LACNIC Deaggregation factor: 2.88
Prefixes being announced from the LACNIC address blocks: 1579
Unique aggregates announced from the LACNIC address blocks: 716
LACNIC Region origin ASes present in the Internet Routing Table: 157
LACNIC Prefixes per ASN: 10.06
LACNIC Region origin ASes announcing only one prefix: 53
LACNIC Region transit ASes present in the Internet Routing Table: 22
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63
Number of LACNIC addresses announced to Internet: 4201366
Equivalent to 0 /8s, 64 /16s and 27 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1106
Total AfriNIC prefixes after maximum aggregation: 167
AfriNIC Deaggregation factor: 6.62
Prefixes being announced from the AfriNIC address blocks: 1105
Unique aggregates announced from the AfriNIC address blocks: 215
AfriNIC Region origin ASes present in the Internet Routing Table: 46
AfriNIC Prefixes per ASN: 24.02
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27
Number of AfriNIC addresses announced to Internet: 2392064
Equivalent to 0 /8s, 36 /16s and 128 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 640 2170 465 SINET-AS Research Organization of Informa
7497 452 180 24 CSTNET-AS-AP Computer Network Information
1237 196 74 147 KREONET-AS-KR KISTI, KR
58647 183 18 2 KAGAWAU-AS Kagawa University, JP
7575 173 297 116 AARNET-AS-AP Australian Academic and Rese
55824 146 19 20 NKN-CORE-NW NKN Core Network, IN
4538 141 4192 71 ERX-CERNET-BKB China Education and Resear
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
4621 68 37 9 UNINET-AS-AP UNINET-, TH
1659 61 1466 35 ERX-TANET-ASN1 Taiwan Academic Network TA
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
668 211 632 178 DNIC-AS-00668, US
376 201 162 151 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
2920 173 34 7 LACOE, US
2152 151 507 99 CENIC-2152, US
18558 139 18 4 NETBLK-RCOEK, US
81 129 519 34 NCREN, US
270 114 304 79 AS270, US
23024 97 7 17 OCDE, US
21976 90 34 16 NJEDGE-NET, US
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 284 1899 249 DFN Verein zur Foerderung eines Deutschen
786 197 1751 186 JANET Jisc Services Limited, GB
559 114 533 104 SWITCH Peering requests: peering at switch.c
8895 108 24 5 ISU Internet Services Unit ISU, SA
1103 98 1743 84 SURFNET-NL SURFnet, The Netherlands, NL
2614 94 26 73 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
3267 79 29 69 NIKS, RU
553 75 366 75 BELWUE BelWue-Koordination, DE
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 310 178 43 Rede Nacional de Ensino e Pesquisa, BR
28391 157 10 69 Universidad Juarez Autonoma de Tabasco, M
11340 109 25 52 Red Universitaria Nacional, CL
271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
61468 54 5 18 CEDIA, EC
4270 53 16 1 Red de Interconexion Universitaria, AR
3596 51 8 4 Universidad Autonoma Metropolitana, MX
2715 50 100 36 Fundacao Carlos Chagas Filho de Amparo a
19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR
28614 38 2 2 Fundacao Universidade Regional de Blumena
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 517 82 3 KENET-AS, KE
2018 379 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37215 34 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37661 12 8 4 NRaE1-AS, NG
37501 11 49 6 UOFS, ZA
327700 10 16 1 MoRENet, MZ
36982 8 33 8 UCT, ZA
37654 8 1 5 RwEdNet-AS, RW
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 640 2170 465 SINET-AS Research Organization of Informa
36914 517 82 3 KENET-AS, KE
7497 452 180 24 CSTNET-AS-AP Computer Network Information
2018 379 319 71 TENET-1, ZA
1916 310 178 43 Rede Nacional de Ensino e Pesquisa, BR
680 284 1899 249 DFN Verein zur Foerderung eines Deutschen
668 211 632 178 DNIC-AS-00668, US
376 201 162 151 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
786 197 1751 186 JANET Jisc Services Limited, GB
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 517 514 KENET-AS, KE
7497 452 428 CSTNET-AS-AP Computer Network Information Cente
2018 379 308 TENET-1, ZA
1916 310 267 Rede Nacional de Ensino e Pesquisa, BR
5786 198 197 UPRENET, PR
58647 183 181 KAGAWAU-AS Kagawa University, JP
2920 173 166 LACOE, US
18558 139 135 NETBLK-RCOEK, US
55824 146 126 NKN-CORE-NW NKN Core Network, IN
8895 108 103 ISU Internet Services Unit ISU, SA
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
65208 PRIVATE 63.225.1.0/24 11570 AS11570, US
64532 PRIVATE 109.105.121.192/27 2603 NORDUNET, DK
64532 PRIVATE 109.105.121.224/30 2603 NORDUNET, DK
26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US
65208 PRIVATE 206.206.156.0/22 11570 AS11570, US
65208 PRIVATE 216.161.32.0/23 11570 AS11570, US
65112 PRIVATE 216.165.80.0/21 12 NYU-DOMAIN, US
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
164.160.192.0/21 Origin: 37661 NRaE1-AS, NG
164.160.192.0/21 Transit: 37288 WACREN, SN
202.14.117.0/24 Origin: 17827 STOU-AS-TH Sukhothai Thammathirat Open U
202.14.117.0/24 Transit: 4621 UNINET-AS-AP UNINET-, TH
203.9.156.0/24 Origin: 1851 ADELAIDE-UNIVERSITY-AS-AP The University
203.9.156.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:1 /11:1 /12:11
/13:18 /14:35 /15:115 /16:2016 /17:417 /18:459
/19:584 /20:873 /21:884 /22:1478 /23:1573 /24:10869
/25:50 /26:75 /27:37 /28:20 /29:21 /30:13
/31:3 /32:10
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 493 517 KENET-AS, KE
8895 105 108 ISU Internet Services Unit ISU, SA
1916 74 310 Rede Nacional de Ensino e Pesquisa, BR
23024 36 97 OCDE, US
3267 35 79 NIKS, RU
32440 33 58 LONI, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
25977 30 44 HCCS, US
27609 29 45 USC-UNIVERSITY-HOSPITAL, US
Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 5:15 6:4 8:2 12:1 14:93
23:10 24:3 31:1 35:9 37:8 38:11
40:1 41:205 42:11 44:4 45:46 46:4
47:1 49:12 50:4 59:19 60:6 61:3
62:8 63:37 64:46 65:5 66:57 67:41
68:10 69:17 70:2 71:1 72:8 74:55
76:35 77:10 78:3 79:10 80:13 81:24
82:6 83:8 84:5 85:51 86:5 87:1
89:10 91:42 92:2 93:14 94:2 95:2
96:5 97:1 98:2 102:11 103:360 104:80
107:2 108:8 109:5 111:21 113:1 114:24
116:9 117:61 118:33 119:30 121:27 122:8
123:8 124:42 125:5 128:57 129:38 130:97
131:65 132:66 133:157 134:110 136:199 137:51
138:58 139:11 140:33 141:3 142:42 143:25
144:27 145:2 146:136 147:57 148:199 149:12
150:69 151:11 152:133 153:14 154:45 155:63
156:130 157:26 158:29 159:117 160:34 161:19
162:24 163:66 164:11 165:48 167:26 168:119
169:7 170:103 171:1 172:2 173:6 175:16
177:6 179:13 180:16 181:1 182:12 184:2
185:48 186:3 187:24 188:14 189:3 190:33
191:13 192:1508 193:292 194:125 195:73 196:145
197:317 198:484 199:284 200:333 201:37 202:638
203:438 204:378 205:137 206:215 207:227 208:67
209:122 210:223 211:3 212:142 213:4 214:9
216:94 217:12 218:23 219:6 220:16 222:2
223:15
End of report
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