[REN-BGP-stats-all] IPv4 R&E Routing Table Report - AARNET (Brisbane) (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Feb 27 21:12:58 UTC 2025
IPv4 R&E Routing Table Report 21:05 GMT Thu 27 Feb, 2025
IPv4 BGP Table (R&E) as seen at AARNET (Brisbane).
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/AARNET-Brisbane/
Analysis Summary
----------------
BGP routing table entries examined: 19993
Prefixes after maximum aggregation (per Origin AS): 9713
Deaggregation factor: 2.06
Unique aggregates announced (without unneeded subnets): 1155
Number of IPv4 prefixes with a valid ROA: 7771
Number of IPv4 prefixes with an invalid ROA: 11
Number of IPv4 prefixes with no ROA: 12211
Total ASes present in the Internet Routing Table: 2816
Prefixes per ASN: 7.10
Origin-only ASes present in the Internet Routing Table: 2445
Origin ASes announcing only one prefix: 1091
Transit ASes present in the Internet Routing Table: 371
Transit-only ASes present in the Internet Routing Table: 67
Paths with bogon ASNs present in the IPv4 Routing Table: 40
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 19
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 1
Number of instances of unregistered ASNs: 1
Number of 32-bit ASNs allocated by the RIRs: 46208
Number of 32-bit ASNs visible in the Routing Table: 691
Prefixes from 32-bit ASNs in the Routing Table: 1867
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: 27066880
Equivalent to 1 /8s, 157 /16s and 2 /24s
Percentage of available address space announced: 0.7
Percentage of allocated address space announced: 0.7
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: 1894
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 5030
Total APNIC prefixes after maximum aggregation: 2187
APNIC Deaggregation factor: 2.30
Prefixes being announced from the APNIC address blocks: 5030
Unique aggregates announced from the APNIC address blocks: 63
APNIC Region origin ASes present in the Internet Routing Table: 576
APNIC Prefixes per ASN: 8.73
APNIC Region origin ASes announcing only one prefix: 244
APNIC Region transit ASes present in the Internet Routing Table: 55
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 11
Number of APNIC region 32-bit ASNs visible in the Routing Table: 220
Number of APNIC addresses announced to Internet: 4206592
Equivalent to 0 /8s, 64 /16s and 48 /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: 8719
Total ARIN prefixes after maximum aggregation: 4791
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 8728
Unique aggregates announced from the ARIN address blocks: 546
ARIN Region origin ASes present in the Internet Routing Table: 1304
ARIN Prefixes per ASN: 6.69
ARIN Region origin ASes announcing only one prefix: 463
ARIN Region transit ASes present in the Internet Routing Table: 163
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 15
Number of ARIN region 32-bit ASNs visible in the Routing Table: 225
Number of ARIN addresses announced to Internet: -1054342912
Equivalent to 193 /8s, 40 /16s and 1 /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: 3575
Total RIPE prefixes after maximum aggregation: 2076
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 3566
Unique aggregates announced from the RIPE address blocks: 514
RIPE Region origin ASes present in the Internet Routing Table: 657
RIPE Prefixes per ASN: 5.43
RIPE Region origin ASes announcing only one prefix: 297
RIPE Region transit ASes present in the Internet Routing Table: 101
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 13
Number of RIPE region 32-bit ASNs visible in the Routing Table: 150
Number of RIPE addresses announced to Internet: 3226368
Equivalent to 0 /8s, 49 /16s and 59 /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: 1479
Total LACNIC prefixes after maximum aggregation: 501
LACNIC Deaggregation factor: 2.95
Prefixes being announced from the LACNIC address blocks: 1478
Unique aggregates announced from the LACNIC address blocks: 18
LACNIC Region origin ASes present in the Internet Routing Table: 158
LACNIC Prefixes per ASN: 9.35
LACNIC Region origin ASes announcing only one prefix: 56
LACNIC Region transit ASes present in the Internet Routing Table: 22
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 14
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 65
Number of LACNIC addresses announced to Internet: 8960
Equivalent to 0 /8s, 0 /16s and 35 /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: 1189
Total AfriNIC prefixes after maximum aggregation: 157
AfriNIC Deaggregation factor: 7.57
Prefixes being announced from the AfriNIC address blocks: 1188
Unique aggregates announced from the AfriNIC address blocks: 14
AfriNIC Region origin ASes present in the Internet Routing Table: 53
AfriNIC Prefixes per ASN: 22.42
AfriNIC Region origin ASes announcing only one prefix: 31
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 31
Number of AfriNIC addresses announced to Internet: 1073967872
Equivalent to 64 /8s, 3 /16s and 115 /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 623 524400 326 SINET-AS Research Organization of Inform
7497 451 262242 30 CSTNET-AS-AP Computer Network Informatio
1237 192 786482 171 KREONET-AS-KR KISTI, KR
7575 189 15 86 AARNET-AS-AP Australian Academic and Rese
58647 183 18 2 KAGAWAU-AS Kagawa University, JP
55824 146 524306 11 NKN-CORE-NW NKN Core Network, IN
10079 145 16 1 UNIWESTSYD-AS-AP University of Western Sy
4538 140 4189 72 ERX-CERNET-BKB China Education and Resear
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
24313 70 16 1 NSW-DET-AS NSW Department of Education, A
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2152 533 786717 65 CENIC-2152, US
2920 226 786470 55 LACOE, US
668 212 786718 104 DNIC-AS-00668, US
376 202 786586 161 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
18558 140 18 5 NETBLK-RCOEK, US
81 129 524806 34 NCREN, US
23024 97 4 16 OCDE, US
21976 90 262176 19 NJEDGE-NET, US
237 85 786803 28 MERIT-AS-14, US
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 283 140 36 DFN Verein zur Foerderung eines Deutschen
786 194 786924 45 JANET Jisc Services Limited, GB
559 114 262649 34 SWITCH Peering requests: peering at switch.
8895 110 262168 5 ISU Internet Services Unit ISU, SA
1103 98 787323 50 SURFNET-NL SURFnet, The Netherlands, NL
2614 94 262164 19 ROEDUNET, RO
137 82 262738 38 ASGARR Consortium GARR, IT
1930 79 262165 5 RCCN Fundacao para a Ciencia e a Tecnolo
3267 78 262166 41 NIKS, RU
553 75 524641 75 BELWUE BelWue-Koordination, DE
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 236 262301 48 Rede Nacional de Ensino e Pesquisa, BR
28391 157 262149 29 Universidad Juarez Autonoma de Tabasco,
11340 109 262146 8 Red Universitaria Nacional, CL
271640 67 0 67 UNIVERSIDADE FEDERAL DE VICOSA, BR
4270 53 16 1 Red de Interconexion Universitaria, AR
61468 52 262144 4 CEDIA, EC
2715 50 262243 36 Fundacao Carlos Chagas Filho de Amparo a
19611 48 16 13 Associacao Antonio Vieira - Unisinos, BR
28614 38 2 2 Fundacao Universidade Regional de Blumena
1251 37 524316 27 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 552 82 3 KENET-AS, KE
2018 380 262449 73 TENET-1, ZA
8094 47 262150 4 PUKNET, ZA
37182 36 8 1 TERNET, TZ
37215 34 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37661 12 262148 2 NRaE1-AS, NG
37501 11 49 6 UOFS, ZA
327700 11 16 1 MoRENet, MZ
327947 9 4 1 KNUST-, GH
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 623 524400 326 SINET-AS Research Organization of Inform
36914 552 82 3 KENET-AS, KE
2152 533 786717 65 CENIC-2152, US
7497 451 262242 30 CSTNET-AS-AP Computer Network Informatio
2018 380 262449 73 TENET-1, ZA
680 283 140 36 DFN Verein zur Foerderung eines Deutschen
1916 236 262301 48 Rede Nacional de Ensino e Pesquisa, BR
2920 226 786470 55 LACOE, US
668 212 786718 104 DNIC-AS-00668, US
376 202 786586 161 RISQ-AS, CA
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 552 549 KENET-AS, KE
2152 533 468 CENIC-2152, US
7497 451 421 CSTNET-AS-AP Computer Network Information Cente
2018 380 307 TENET-1, ZA
680 283 247 DFN Verein zur Foerderung eines Deutschen Forsc
5786 198 197 UPRENET, PR
1916 236 188 Rede Nacional de Ensino e Pesquisa, BR
58647 183 181 KAGAWAU-AS Kagawa University, JP
2920 226 171 LACOE, US
786 194 149 JANET Jisc Services Limited, GB
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
164.160.192.0/2 Origin: 37661 NRaE1-AS, NG
164.160.192.0/2 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/AARNET-Brisbane/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:395 /2:5131 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:1 /11:1 /12:11
/13:18 /14:33 /15:115 /16:1985 /17:311 /18:337
/19:421 /20:622 /21:636 /22:1039 /23:1109 /24:7827
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 375 552 KENET-AS, KE
8895 67 110 ISU Internet Services Unit ISU, SA
37182 35 36 TERNET, TZ
3267 34 78 NIKS, RU
23024 34 97 OCDE, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
32440 31 58 LONI, US
25977 30 44 HCCS, US
27609 29 45 USC-UNIVERSITY-HOSPITAL, US
Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 5:15 6:4 8:2 12:2 14:93
23:10 24:3 31:1 35:15 37:8 38:11
40:1 41:255 42:11 44:4 45:52 46:4
47:1 49:11 50:4 52:1 59:19 60:6
61:3 62:6 63:36 64:45 65:5 66:57
67:41 68:10 69:17 70:2 71:1 72:8
74:52 76:35 77:10 78:3 79:10 80:13
81:24 82:6 83:9 84:6 85:51 86:5
87:1 89:10 91:41 92:2 93:14 94:2
95:2 96:5 97:1 98:2 102:4 103:193
104:44 107:2 108:8 109:2 111:16 113:1
114:24 116:9 117:61 119:30 121:24 123:8
124:42 125:5 128:52 129:22 130:54 131:39
132:26 133:156 134:94 136:87 137:117 138:65
139:7 140:14 141:2 142:34 143:15 144:24
146:123 147:30 148:87 149:7 150:52 151:7
152:135 153:13 154:45 155:52 156:129 157:26
158:20 159:44 160:26 161:12 162:16 163:37
164:6 165:5 167:21 168:62 169:3 170:51
171:1 172:1 173:5 175:11 177:4 179:11
180:16 182:10 185:28 186:2 187:17 188:12
189:3 190:16 191:13 192:985 193:220 194:106
195:56 196:146 197:184 198:280 199:171 200:217
201:33 202:544 203:247 204:229 205:83 206:125
207:205 208:37 209:125 210:153 211:2 212:69
213:3 214:9 216:51 217:4 218:3 219:2
220:13 223:15
End of report
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