[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon Dec 9 17:05:40 UTC 2024
IPv4 R&E Routing Table Report 17:05 GMT Mon 09 Dec, 2024
IPv4 BGP Table (R&E) as seen at ASREN.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/
Analysis Summary
----------------
BGP routing table entries examined: 13433
Prefixes after maximum aggregation (per Origin AS): 7833
Deaggregation factor: 1.71
Unique aggregates announced (without unneeded subnets): 8622
Number of IPv4 prefixes with a valid ROA: 5311
Number of IPv4 prefixes with an invalid ROA: 1
Number of IPv4 prefixes with no ROA: 8121
Total ASes present in the Internet Routing Table: 2017
Prefixes per ASN: 6.66
Origin-only ASes present in the Internet Routing Table: 1747
Origin ASes announcing only one prefix: 836
Transit ASes present in the Internet Routing Table: 270
Transit-only ASes present in the Internet Routing Table: 49
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 19
Max AS path prepend of ASN (327947) 11
Prefixes from unregistered ASNs in the Routing Table: 0
Number of instances of unregistered ASNs: 0
Number of 32-bit ASNs allocated by the RIRs: 45981
Number of 32-bit ASNs visible in the Routing Table: 481
Prefixes from 32-bit ASNs in the Routing Table: 1259
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: 2
Number of addresses announced to Internet: 157527776
Equivalent to 9 /8s, 99 /16s and 174 /24s
Percentage of available address space announced: 4.3
Percentage of allocated address space announced: 4.3
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: 1692
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3111
Total APNIC prefixes after maximum aggregation: 1636
APNIC Deaggregation factor: 1.90
Prefixes being announced from the APNIC address blocks: 3111
Unique aggregates announced from the APNIC address blocks: 1802
APNIC Region origin ASes present in the Internet Routing Table: 405
APNIC Prefixes per ASN: 7.68
APNIC Region origin ASes announcing only one prefix: 196
APNIC Region transit ASes present in the Internet Routing Table: 38
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 11
Number of APNIC region 32-bit ASNs visible in the Routing Table: 165
Number of APNIC addresses announced to Internet: 37152864
Equivalent to 2 /8s, 54 /16s and 232 /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, 131072-153913
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: 6150
Total ARIN prefixes after maximum aggregation: 3395
ARIN Deaggregation factor: 1.81
Prefixes being announced from the ARIN address blocks: 6164
Unique aggregates announced from the ARIN address blocks: 3774
ARIN Region origin ASes present in the Internet Routing Table: 900
ARIN Prefixes per ASN: 6.85
ARIN Region origin ASes announcing only one prefix: 327
ARIN Region transit ASes present in the Internet Routing Table: 116
Average ARIN Region AS path length visible: 5.4
Max ARIN Region AS path length visible: 17
Number of ARIN region 32-bit ASNs visible in the Routing Table: 146
Number of ARIN addresses announced to Internet: 63688736
Equivalent to 3 /8s, 203 /16s and 208 /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: 2940
Total RIPE prefixes after maximum aggregation: 2449
RIPE Deaggregation factor: 1.20
Prefixes being announced from the RIPE address blocks: 2929
Unique aggregates announced from the RIPE address blocks: 2517
RIPE Region origin ASes present in the Internet Routing Table: 567
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 266
RIPE Region transit ASes present in the Internet Routing Table: 84
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 13
Number of RIPE region 32-bit ASNs visible in the Routing Table: 135
Number of RIPE addresses announced to Internet: 54689664
Equivalent to 3 /8s, 66 /16s and 127 /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: 558
Total LACNIC prefixes after maximum aggregation: 304
LACNIC Deaggregation factor: 1.84
Prefixes being announced from the LACNIC address blocks: 554
Unique aggregates announced from the LACNIC address blocks: 463
LACNIC Region origin ASes present in the Internet Routing Table: 68
LACNIC Prefixes per ASN: 8.15
LACNIC Region origin ASes announcing only one prefix: 30
LACNIC Region transit ASes present in the Internet Routing Table: 15
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 20
Number of LACNIC addresses announced to Internet: 1335776
Equivalent to 0 /8s, 20 /16s and 97 /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: 674
Total AfriNIC prefixes after maximum aggregation: 49
AfriNIC Deaggregation factor: 13.76
Prefixes being announced from the AfriNIC address blocks: 673
Unique aggregates announced from the AfriNIC address blocks: 64
AfriNIC Region origin ASes present in the Internet Routing Table: 28
AfriNIC Prefixes per ASN: 24.04
AfriNIC Region origin ASes announcing only one prefix: 17
AfriNIC Region transit ASes present in the Internet Routing Table: 7
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 15
Number of AfriNIC addresses announced to Internet: 658432
Equivalent to 0 /8s, 10 /16s and 12 /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 597 2200 463 SINET-AS Research Organization of Informa
7497 446 180 24 CSTNET-AS-AP Computer Network Information
58647 181 18 2 KAGAWAU-AS Kagawa University, JP
7575 171 313 114 AARNET-AS-AP Australian Academic and Rese
4538 134 4192 70 ERX-CERNET-BKB China Education and Resear
55824 132 18 18 NKN-CORE-NW NKN Core Network, IN
2697 60 4 35 ERX-ERNET-AS Education and Research Netwo
45773 47 3 5 HECPERN-AS-PK PERN AS Content Servie Prov
132524 43 9 11 TIFR-AS Tata Institute of Fundamental Res
24361 33 56 17 CNGI-NJ-IX-AS-AP CERNET2 IX at Southeast
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2152 503 507 97 CENIC-2152, US
2920 226 44 49 LACOE, US
5786 198 16 1 UPRENET, PR
376 197 162 146 RISQ-AS, CA
18558 141 18 5 NETBLK-RCOEK, US
23024 95 7 21 OCDE, US
21976 89 50 15 NJEDGE-NET, US
237 81 541 47 MERIT-AS-14, US
1736 79 16 1 MU-AS, US
81 78 218 38 NCREN, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 283 1899 249 DFN Verein zur Foerderung eines Deutschen
786 186 1767 183 JANET Jisc Services Limited, GB
559 114 533 104 SWITCH Peering requests: peering at switch.c
1103 95 1487 82 SURFNET-NL SURFnet, The Netherlands, NL
2614 93 26 73 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
2200 64 598 59 FR-RENATER Reseau National de telecommuni
200521 55 4 21 SEAP-AGE, ES
1653 52 150 49 SUNET SUNET Swedish University Network, E
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 139 39 91 Rede Nacional de Ensino e Pesquisa, BR
11340 109 25 52 Red Universitaria Nacional, CL
271640 66 4 29 UNIVERSIDADE FEDERAL DE VICOSA, BR
20191 28 16 1 Pontificia Universidad Catolica de Chile,
3597 20 16 2 Fundacion InnovaT, AR
28571 19 40 18 UNIVERSIDADE DE SAO PAULO, BR
28609 17 1 2 Instituto Nupef, BR
61468 14 3 5 CEDIA, EC
21612 10 1 8 FUNDACAO INSTITUTO OSWALDO CRUZ, BR
278 9 1 8 Universidad Nacional Autonoma de Mexico,
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 556 82 3 KENET-AS, KE
37215 32 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
327700 13 16 1 MoRENet, MZ
37661 12 8 4 NRaE1-AS, NG
37654 6 0 5 RwEdNet-AS, RW
327947 5 4 1 KNUST-, GH
37074 3 0 3 UG-AS, GH
37182 2 0 2 TERNET, TZ
37532 2 20 2 ZAMREN, ZM
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 597 2200 463 SINET-AS Research Organization of Informa
36914 556 82 3 KENET-AS, KE
2152 503 507 97 CENIC-2152, US
7497 446 180 24 CSTNET-AS-AP Computer Network Information
680 283 1899 249 DFN Verein zur Foerderung eines Deutschen
2920 226 44 49 LACOE, US
5786 198 16 1 UPRENET, PR
376 197 162 146 RISQ-AS, CA
786 186 1767 183 JANET Jisc Services Limited, GB
58647 181 18 2 KAGAWAU-AS Kagawa University, JP
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 556 553 KENET-AS, KE
7497 446 422 CSTNET-AS-AP Computer Network Information Cente
2152 503 406 CENIC-2152, US
5786 198 197 UPRENET, PR
58647 181 179 KAGAWAU-AS Kagawa University, JP
2920 226 177 LACOE, US
18558 141 136 NETBLK-RCOEK, US
55824 132 114 NKN-CORE-NW NKN Core Network, IN
1736 79 78 MU-AS, US
23024 95 74 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-CIDRnet
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
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/ASREN/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 /11:0 /12:9
/13:16 /14:33 /15:96 /16:1538 /17:286 /18:279
/19:402 /20:527 /21:594 /22:996 /23:1155 /24:7375
/25:33 /26:60 /27:32 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 532 556 KENET-AS, KE
2152 60 503 CENIC-2152, US
1916 59 139 Rede Nacional de Ensino e Pesquisa, BR
23024 37 95 OCDE, US
32440 36 62 LONI, US
200521 32 55 SEAP-AGE, ES
25977 28 42 HCCS, US
37215 26 32 MAREN, MW
26898 24 32 LNOCA-ORG, US
36794 21 22 SCOCA, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 5:15 8:2 12:1 14:93 23:1
24:2 31:1 35:3 37:8 38:2 41:224
42:6 44:3 45:25 46:4 47:1 49:10
50:1 59:8 60:5 61:2 62:5 63:2
64:19 65:2 66:19 67:32 68:4 69:10
70:2 72:7 74:18 76:38 77:3 78:3
79:10 80:6 81:24 82:2 83:6 84:6
85:25 87:1 89:11 91:38 93:13 94:2
95:2 96:5 98:2 101:1 102:3 103:213
104:73 108:2 109:1 111:17 114:1 116:7
118:17 119:23 121:27 122:8 123:8 124:42
125:1 128:30 129:28 130:93 131:56 132:18
133:154 134:74 136:196 137:78 138:59 139:5
140:18 141:3 142:18 143:15 144:24 145:2
146:121 147:21 148:9 149:12 150:9 151:3
152:79 153:6 154:15 155:40 156:132 157:13
158:25 159:116 160:31 161:10 162:18 163:58
164:9 165:8 167:7 168:28 169:6 170:14
172:1 173:7 177:1 179:6 180:15 182:1
184:5 185:39 186:1 187:4 188:11 191:2
192:1089 193:231 194:81 195:59 196:8 197:341
198:415 199:190 200:167 201:16 202:356 203:184
204:341 205:140 206:157 207:270 208:46 209:132
210:100 211:1 212:41 213:4 216:50 217:9
219:6 220:3 222:1 223:4
End of report
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