IPv4 R&E Routing Table Report 18:50 GMT Sun 05 Mar, 2023 IPv4 BGP Table (R&E) as seen at KENET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KENET/ Analysis Summary ---------------- BGP routing table entries examined: 15345 Prefixes after maximum aggregation (per Origin AS): 8647 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 9551 Number of IPv4 prefixes with a valid ROA: 4204 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 11099 Total ASes present in the Internet Routing Table: 2262 Prefixes per ASN: 6.78 Origin-only ASes present in the Internet Routing Table: 1935 Origin ASes announcing only one prefix: 870 Transit ASes present in the Internet Routing Table: 327 Transit-only ASes present in the Internet Routing Table: 60 Paths with bogon ASNs present in the IPv4 Routing Table: 2 Average AS path length visible in the Internet Routing Table: 5.0 Max AS path length visible: 20 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 4 Number of instances of unregistered ASNs: 4 Number of 32-bit ASNs allocated by the RIRs: 41374 Number of 32-bit ASNs visible in the Routing Table: 517 Prefixes from 32-bit ASNs in the Routing Table: 1341 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: 1 Number of addresses announced to Internet: 185856000 Equivalent to 11 /8s, 19 /16s and 240 /24s Percentage of available address space announced: 5.0 Percentage of allocated address space announced: 5.0 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: 2022 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3890 Total APNIC prefixes after maximum aggregation: 2011 APNIC Deaggregation factor: 1.93 Prefixes being announced from the APNIC address blocks: 3893 Unique aggregates announced from the APNIC address blocks: 2221 APNIC Region origin ASes present in the Internet Routing Table: 475 APNIC Prefixes per ASN: 8.20 APNIC Region origin ASes announcing only one prefix: 208 APNIC Region transit ASes present in the Internet Routing Table: 56 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 183 Number of APNIC addresses announced to Internet: 44583680 Equivalent to 2 /8s, 168 /16s and 75 /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, 131072-151865 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: 5844 Total ARIN prefixes after maximum aggregation: 3260 ARIN Deaggregation factor: 1.79 Prefixes being announced from the ARIN address blocks: 5857 Unique aggregates announced from the ARIN address blocks: 3675 ARIN Region origin ASes present in the Internet Routing Table: 943 ARIN Prefixes per ASN: 6.21 ARIN Region origin ASes announcing only one prefix: 333 ARIN Region transit ASes present in the Internet Routing Table: 131 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 141 Number of ARIN addresses announced to Internet: 79161344 Equivalent to 4 /8s, 183 /16s and 232 /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, 393216-401308 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: 3420 Total RIPE prefixes after maximum aggregation: 2731 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3411 Unique aggregates announced from the RIPE address blocks: 2777 RIPE Region origin ASes present in the Internet Routing Table: 622 RIPE Prefixes per ASN: 5.48 RIPE Region origin ASes announcing only one prefix: 274 RIPE Region transit ASes present in the Internet Routing Table: 96 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 129 Number of RIPE addresses announced to Internet: 56441088 Equivalent to 3 /8s, 93 /16s and 57 /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 196608-213403 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: 1184 Total LACNIC prefixes after maximum aggregation: 482 LACNIC Deaggregation factor: 2.46 Prefixes being announced from the LACNIC address blocks: 1181 Unique aggregates announced from the LACNIC address blocks: 612 LACNIC Region origin ASes present in the Internet Routing Table: 149 LACNIC Prefixes per ASN: 7.93 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: 5.7 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 61 Number of LACNIC addresses announced to Internet: 3919104 Equivalent to 0 /8s, 59 /16s and 205 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 1003 Total AfriNIC prefixes after maximum aggregation: 159 AfriNIC Deaggregation factor: 6.31 Prefixes being announced from the AfriNIC address blocks: 1002 Unique aggregates announced from the AfriNIC address blocks: 265 AfriNIC Region origin ASes present in the Internet Routing Table: 11 AfriNIC Prefixes per ASN: 91.09 AfriNIC Region origin ASes announcing only one prefix: 2 AfriNIC Region transit ASes present in the Internet Routing Table: 6 Average AfriNIC Region AS path length visible: 2.2 Max AfriNIC Region AS path length visible: 6 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 3 Number of AfriNIC addresses announced to Internet: 1750272 Equivalent to 0 /8s, 26 /16s and 181 /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 591 2157 463 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 4538 192 4192 73 ERX-CERNET-BKB China Education and Rese 1237 184 74 133 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 55824 116 18 10 NKN-CORE-NW NKN Core Network, IN 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T 2697 55 3 33 ERX-ERNET-AS Education and Research Net 1659 51 1450 34 ERX-TANET-ASN1 Taiwan Academic Network Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 5786 198 16 1 UPRENET, PR 2152 148 507 92 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US 2920 107 34 7 LACOE, US 32531 90 6 60 FORDHAM-UNIVERSITY, US 21976 85 51 18 NJEDGE-NET, US 3477 71 63 42 NOAA-NWAVE, US 22742 68 53 33 CT-EDU-NET, US Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 277 1918 245 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 136 24 4 ISU Internet Services Unit ISU, SA 559 113 550 104 SWITCH Peering requests: peering@switch 1103 95 1518 85 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 62 583 57 FR-RENATER Reseau National de telecommu Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 158 208 43 Rede Nacional de Ensino e Pesquisa, BR 11340 104 24 47 Red Universitaria Nacional, CL 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 1251 57 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 4270 45 16 1 Red de Interconexion Universitaria, AR 61468 42 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 3596 33 2 2 Universidad Autonoma Metropolitana, MX Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 486 81 35 KENET-AS, KE 2018 379 319 72 TENET-1, ZA 2561 67 4 34 EUN, EG 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 30983 4 4 1 MARWAN-AS, MA 327945 4 0 2 ILRI, KE 328225 3 0 1 Strathmore-University, KE 328762 2 0 2 Mansoora-University, EG 6149 1 0 1 TENET-2, ZA Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 591 2157 463 SINET-AS Research Organization of Infor 36914 486 81 35 KENET-AS, KE 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 2018 379 319 72 TENET-1, ZA 680 277 1918 245 DFN Verein zur Foerderung eines Deutsch 5786 198 16 1 UPRENET, PR 4538 192 4192 73 ERX-CERNET-BKB China Education and Rese 786 186 1775 183 JANET Jisc Services Limited, GB 1237 184 74 133 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 486 451 KENET-AS, KE 7497 435 411 CSTNET-AS-AP Computer Network Information Cente 2018 379 307 TENET-1, ZA 5786 198 197 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 136 132 ISU Internet Services Unit ISU, SA 18558 134 130 NETBLK-RCOEK, US 4538 192 119 ERX-CERNET-BKB China Education and Research Net 1916 158 115 Rede Nacional de Ensino e Pesquisa, BR 55824 116 106 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/KENET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 65300 PRIVATE 103.252.172.0/22 133465 DKU-AS-AP Duke Kunshan Unive 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 65300 PRIVATE 180.208.59.0/24 133465 DKU-AS-AP Duke Kunshan Unive 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/KENET/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 11537 INTERNET2-RESEARCH-EDU, US Complete listing at https://bgp.nsrc.org/REN/KENET/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 /10:2 /11:1 /12:10 /13:19 /14:34 /15:119 /16:1765 /17:371 /18:384 /19:463 /20:732 /21:754 /22:1167 /23:1322 /24:8201 /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 466 486 KENET-AS, KE 8895 131 136 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 35 56 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 263282 29 32 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 200521 27 49 SEAP-AGE, ES Complete listing at https://bgp.nsrc.org/REN/KENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 8:2 12:1 14:88 23:5 24:2 31:7 35:6 38:7 40:1 41:182 42:15 44:5 45:34 46:5 47:1 49:7 52:1 58:12 59:21 60:4 61:3 62:11 63:33 64:52 65:1 66:31 67:42 68:8 69:20 70:2 71:1 72:7 74:50 76:40 77:8 78:3 79:10 80:17 81:28 82:6 83:6 84:8 85:42 86:5 87:1 89:10 91:45 92:2 93:4 94:4 95:1 97:1 98:2 101:8 102:1 103:263 104:79 108:4 109:10 110:2 111:15 114:10 116:6 118:33 119:21 121:27 122:8 123:8 124:39 125:4 128:65 129:35 130:85 131:41 132:45 133:157 134:33 136:198 137:48 138:9 139:5 140:42 141:1 143:23 144:23 146:131 147:22 148:38 149:12 150:122 151:9 152:79 153:14 154:23 155:51 156:67 157:28 158:36 159:114 160:27 161:17 162:13 163:67 164:10 165:8 166:1 167:12 168:118 169:9 170:59 171:1 172:3 173:6 175:31 176:8 177:9 179:10 180:15 181:1 182:1 184:1 185:35 186:3 187:17 188:13 189:3 190:18 191:35 192:1229 193:333 194:134 195:86 196:139 197:274 198:301 199:123 200:214 201:37 202:472 203:237 204:274 205:37 206:70 207:86 208:64 209:91 210:139 211:16 212:166 213:5 216:34 217:10 218:21 219:12 220:10 222:6 223:9 End of report