[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CENIC (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Jun 14 22:05:40 UTC 2024
IPv4 R&E Routing Table Report 22:05 GMT Fri 14 Jun, 2024
IPv4 BGP Table (R&E) as seen at CENIC.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/CENIC/
Analysis Summary
----------------
BGP routing table entries examined: 19273
Prefixes after maximum aggregation (per Origin AS): 11115
Deaggregation factor: 1.73
Unique aggregates announced (without unneeded subnets): 12300
Number of IPv4 prefixes with a valid ROA: 6519
Number of IPv4 prefixes with an invalid ROA: 7
Number of IPv4 prefixes with no ROA: 12747
Total ASes present in the Internet Routing Table: 2763
Prefixes per ASN: 6.98
Origin-only ASes present in the Internet Routing Table: 2390
Origin ASes announcing only one prefix: 1048
Transit ASes present in the Internet Routing Table: 373
Transit-only ASes present in the Internet Routing Table: 70
Paths with bogon ASNs present in the IPv4 Routing Table: 4
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 15
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 5
Number of instances of unregistered ASNs: 5
Number of 32-bit ASNs allocated by the RIRs: 44755
Number of 32-bit ASNs visible in the Routing Table: 642
Prefixes from 32-bit ASNs in the Routing Table: 1785
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: 260875264
Equivalent to 15 /8s, 140 /16s and 164 /24s
Percentage of available address space announced: 7.0
Percentage of allocated address space announced: 7.0
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: 2148
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4582
Total APNIC prefixes after maximum aggregation: 2256
APNIC Deaggregation factor: 2.03
Prefixes being announced from the APNIC address blocks: 4636
Unique aggregates announced from the APNIC address blocks: 2600
APNIC Region origin ASes present in the Internet Routing Table: 544
APNIC Prefixes per ASN: 8.52
APNIC Region origin ASes announcing only one prefix: 234
APNIC Region transit ASes present in the Internet Routing Table: 58
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 209
Number of APNIC addresses announced to Internet: 46836736
Equivalent to 2 /8s, 202 /16s and 172 /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: 8966
Total ARIN prefixes after maximum aggregation: 5362
ARIN Deaggregation factor: 1.67
Prefixes being announced from the ARIN address blocks: 8765
Unique aggregates announced from the ARIN address blocks: 5731
ARIN Region origin ASes present in the Internet Routing Table: 1286
ARIN Prefixes per ASN: 6.82
ARIN Region origin ASes announcing only one prefix: 446
ARIN Region transit ASes present in the Internet Routing Table: 161
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 15
Number of ARIN region 32-bit ASNs visible in the Routing Table: 207
Number of ARIN addresses announced to Internet: 135931392
Equivalent to 8 /8s, 26 /16s and 38 /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, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 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: 3494
Total RIPE prefixes after maximum aggregation: 2800
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3641
Unique aggregates announced from the RIPE address blocks: 3040
RIPE Region origin ASes present in the Internet Routing Table: 671
RIPE Prefixes per ASN: 5.43
RIPE Region origin ASes announcing only one prefix: 301
RIPE Region transit ASes present in the Internet Routing Table: 102
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 153
Number of RIPE addresses announced to Internet: 70898176
Equivalent to 4 /8s, 57 /16s and 210 /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,
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: 1363
Total LACNIC prefixes after maximum aggregation: 542
LACNIC Deaggregation factor: 2.51
Prefixes being announced from the LACNIC address blocks: 1363
Unique aggregates announced from the LACNIC address blocks: 729
LACNIC Region origin ASes present in the Internet Routing Table: 160
LACNIC Prefixes per ASN: 8.52
LACNIC Region origin ASes announcing only one prefix: 55
LACNIC Region transit ASes present in the Internet Routing Table: 25
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 14
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64
Number of LACNIC addresses announced to Internet: 4657152
Equivalent to 0 /8s, 71 /16s and 16 /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: 863
Total AfriNIC prefixes after maximum aggregation: 150
AfriNIC Deaggregation factor: 5.75
Prefixes being announced from the AfriNIC address blocks: 866
Unique aggregates announced from the AfriNIC address blocks: 198
AfriNIC Region origin ASes present in the Internet Routing Table: 29
AfriNIC Prefixes per ASN: 29.86
AfriNIC Region origin ASes announcing only one prefix: 12
AfriNIC Region transit ASes present in the Internet Routing Table: 7
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 9
Number of AfriNIC addresses announced to Internet: 2549504
Equivalent to 0 /8s, 38 /16s and 231 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 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 581 2111 456 SINET-AS Research Organization of Infor
7497 440 180 24 UNASSIGNED
1237 191 74 142 UNASSIGNED
58647 182 18 2 KAGAWAU-AS Kagawa University, JP
7575 172 329 115 UNASSIGNED
55824 132 19 20 NKN-CORE-NW NKN Core Network, IN
4538 129 4192 72 ERX-CERNET-BKB China Education and Rese
9411 82 16 2 UNASSIGNED
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, T
4621 70 37 10 UNASSIGNED
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8075 492 13696 411 UNASSIGNED
668 204 648 173 UNASSIGNED
376 203 162 152 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
2920 175 34 7 LACOE, US
2152 154 507 94 CSUNET-NW, US
18558 140 18 4 NETBLK-RCOEK, US
81 132 501 32 NCREN, US
270 117 328 81 AS270, US
23024 106 7 22 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 282 1899 249 DFN Verein zur Foerderung eines Deutsch
786 184 1767 181 JANET Jisc Services Limited, GB
8895 133 24 5 ISU Internet Services Unit ISU, SA
559 113 533 103 SWITCH Peering requests: peering at switch
1103 95 1503 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 93 27 73 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol
553 78 462 78 BELWUE BelWue-Koordination, DE
3267 76 26 66 RUNNET, RU
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
28391 153 10 67 Universidad Juarez Autonoma de Tabasco,
1916 139 176 42 Rede Nacional de Ensino e Pesquisa, BR
11340 109 25 52 Red Universitaria Nacional, CL
271640 65 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
4270 50 17 3 Red de Interconexion Universitaria, AR
19611 48 17 2 Associacao Antonio Vieira - Unisinos, B
2715 46 99 35 Fundacao Carlos Chagas Filho de Amparo
61468 43 3 14 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
3596 37 8 4 Universidad Autonoma Metropolitana, MX
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 381 319 71 TENET-1, ZA
36914 251 82 3 KENET-AS, KE
8094 47 48 18 PUKNET, ZA
327700 43 16 1 MoRENet, MZ
37215 36 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37661 13 8 5 NRaE1-AS, NG
37182 12 8 1 TERNET, TZ
37501 11 49 6 UOFS, ZA
36982 8 33 8 UCT, ZA
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 581 2111 456 SINET-AS Research Organization of Infor
8075 492 13696 411 UNASSIGNED
7497 440 180 24 UNASSIGNED
2018 381 319 71 TENET-1, ZA
680 282 1899 249 DFN Verein zur Foerderung eines Deutsch
36914 251 82 3 KENET-AS, KE
668 204 648 173 UNASSIGNED
376 203 162 152 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
1237 191 74 142 UNASSIGNED
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 440 416 UNASSIGNED
2018 381 310 TENET-1, ZA
36914 251 248 KENET-AS, KE
5786 198 197 UPRENET, PR
58647 182 180 KAGAWAU-AS Kagawa University, JP
2920 175 168 LACOE, US
18558 140 136 NETBLK-RCOEK, US
8895 133 128 ISU Internet Services Unit ISU, SA
55824 132 112 NKN-CORE-NW NKN Core Network, IN
81 132 100 NCREN, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/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
26971 UNALLOCATED 129.111.0.0/16 276 UNASSIGNED
18838 UNALLOCATED 168.8.240.0/20 3480 PEACHNET-AS3480, US
18838 UNALLOCATED 168.9.0.0/20 3480 PEACHNET-AS3480, US
65208 PRIVATE 216.161.32.0/23 11570 AS11570, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/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
192.31.196.0/24 Origin: 112 UNASSIGNED
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/CENIC/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 /10:3 /11:7 /12:24
/13:30 /14:60 /15:154 /16:2091 /17:446 /18:467
/19:580 /20:904 /21:885 /22:1515 /23:1559 /24:10547
/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 238 251 KENET-AS, KE
8895 128 133 ISU Internet Services Unit ISU, SA
8075 106 492 UNASSIGNED
23024 49 106 OCDE, US
32440 38 64 LONI, US
327700 38 43 MoRENet, MZ
3267 35 76 RUNNET, RU
18632 34 67 VOLCANO-VISION, US
200521 33 56 SEAP-AGE, ES
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 2:1 4:2 5:16 6:4 8:2
12:1 13:31 14:91 23:7 24:3 31:1
35:7 38:10 40:1 41:199 42:10 44:5
45:46 46:6 47:1 49:9 50:7 52:6
59:19 60:6 61:3 62:15 63:38 64:50
65:5 66:63 67:47 68:17 69:28 70:2
71:1 72:8 74:54 76:42 77:10 78:3
79:10 80:14 81:25 82:6 83:7 84:5
85:30 86:5 87:1 89:11 91:52 92:4
93:5 94:6 95:3 97:2 98:2 101:1
102:5 103:275 104:76 107:16 108:11 109:8
111:1 113:4 114:24 116:8 117:61 118:34
119:21 121:11 122:8 123:8 124:41 125:5
128:83 129:41 130:84 131:70 132:66 133:157
134:109 135:3 136:197 137:56 138:60 139:5
140:38 141:4 142:30 143:25 144:28 145:5
146:136 147:65 148:194 149:12 150:47 151:11
152:136 153:15 154:37 155:70 156:134 157:23
158:35 159:120 160:30 161:25 162:39 163:64
164:20 165:49 166:1 167:16 168:121 169:6
170:117 171:1 172:3 173:7 175:18 176:9
177:4 178:1 179:14 180:15 181:1 182:1
184:6 185:78 186:3 187:18 188:14 189:3
190:18 191:13 192:1499 193:256 194:134 195:68
196:154 197:115 198:487 199:304 200:253 201:37
202:611 203:436 204:379 205:140 206:204 207:208
208:79 209:124 210:194 211:14 212:169 213:8
214:8 216:99 217:12 218:22 219:5 220:17
222:2 223:14
End of report
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