IPv4 R&E Routing Table Report 18:50 GMT Tue 14 Feb, 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: 14889 Prefixes after maximum aggregation (per Origin AS): 8430 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 9321 Number of IPv4 prefixes with a valid ROA: 4094 Number of IPv4 prefixes with an invalid ROA: 40 Number of IPv4 prefixes with no ROA: 10755 Total ASes present in the Internet Routing Table: 2194 Prefixes per ASN: 6.79 Origin-only ASes present in the Internet Routing Table: 1883 Origin ASes announcing only one prefix: 848 Transit ASes present in the Internet Routing Table: 311 Transit-only ASes present in the Internet Routing Table: 58 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 5.1 Max AS path length visible: 20 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 3 Number of instances of unregistered ASNs: 3 Number of 32-bit ASNs allocated by the RIRs: 41188 Number of 32-bit ASNs visible in the Routing Table: 490 Prefixes from 32-bit ASNs in the Routing Table: 1297 Number of bogon 32-bit ASNs visible in the Routing Table: 1 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 1 Number of addresses announced to Internet: 183292928 Equivalent to 10 /8s, 236 /16s and 212 /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: 1843 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3774 Total APNIC prefixes after maximum aggregation: 2006 APNIC Deaggregation factor: 1.88 Prefixes being announced from the APNIC address blocks: 3775 Unique aggregates announced from the APNIC address blocks: 2192 APNIC Region origin ASes present in the Internet Routing Table: 467 APNIC Prefixes per ASN: 8.08 APNIC Region origin ASes announcing only one prefix: 206 APNIC Region transit ASes present in the Internet Routing Table: 55 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: 175 Number of APNIC addresses announced to Internet: 44481792 Equivalent to 2 /8s, 166 /16s and 189 /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: 5524 Total ARIN prefixes after maximum aggregation: 3100 ARIN Deaggregation factor: 1.78 Prefixes being announced from the ARIN address blocks: 5538 Unique aggregates announced from the ARIN address blocks: 3487 ARIN Region origin ASes present in the Internet Routing Table: 906 ARIN Prefixes per ASN: 6.11 ARIN Region origin ASes announcing only one prefix: 323 ARIN Region transit ASes present in the Internet Routing Table: 124 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: 133 Number of ARIN addresses announced to Internet: 77137152 Equivalent to 4 /8s, 153 /16s and 5 /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: 3333 Total RIPE prefixes after maximum aggregation: 2655 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3324 Unique aggregates announced from the RIPE address blocks: 2696 RIPE Region origin ASes present in the Internet Routing Table: 606 RIPE Prefixes per ASN: 5.49 RIPE Region origin ASes announcing only one prefix: 267 RIPE Region transit ASes present in the Internet Routing Table: 93 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: 121 Number of RIPE addresses announced to Internet: 55910656 Equivalent to 3 /8s, 85 /16s and 33 /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: 1332 Total LACNIC prefixes after maximum aggregation: 551 LACNIC Deaggregation factor: 2.42 Prefixes being announced from the LACNIC address blocks: 1328 Unique aggregates announced from the LACNIC address blocks: 768 LACNIC Region origin ASes present in the Internet Routing Table: 147 LACNIC Prefixes per ASN: 9.03 LACNIC Region origin ASes announcing only one prefix: 50 LACNIC Region transit ASes present in the Internet Routing Table: 22 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 59 Number of LACNIC addresses announced to Internet: 4035328 Equivalent to 0 /8s, 61 /16s and 147 /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: 923 Total AfriNIC prefixes after maximum aggregation: 115 AfriNIC Deaggregation factor: 8.03 Prefixes being announced from the AfriNIC address blocks: 923 Unique aggregates announced from the AfriNIC address blocks: 177 AfriNIC Region origin ASes present in the Internet Routing Table: 8 AfriNIC Prefixes per ASN: 115.38 AfriNIC Region origin ASes announcing only one prefix: 2 AfriNIC Region transit ASes present in the Internet Routing Table: 4 Average AfriNIC Region AS path length visible: 2.0 Max AfriNIC Region AS path length visible: 6 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 2 Number of AfriNIC addresses announced to Internet: 1727488 Equivalent to 0 /8s, 26 /16s and 92 /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 583 2157 462 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 4538 191 4190 72 ERX-CERNET-BKB China Education and Rese 1237 184 74 133 KREONET-AS-KR KISTI, KR 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 55824 117 18 11 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 199 16 1 UPRENET, PR 2152 149 507 93 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 70 62 41 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 680 276 1918 245 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 135 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 95 27 75 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 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 104 24 47 Red Universitaria Nacional, CL 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 1251 53 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 4270 45 16 1 Red de Interconexion Universitaria, AR 61468 42 3 14 CEDIA, EC 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 28614 36 2 2 Fundacao Universidade Regional de Blume 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 503 81 36 KENET-AS, KE 2018 375 319 72 TENET-1, ZA 3208 32 2 1 ARN, DZ 30983 4 4 1 MARWAN-AS, MA 327945 4 0 2 ILRI, KE 328225 3 0 1 Strathmore-University, KE 6149 1 0 1 TENET-2, ZA 37717 1 16 1 EL-Khawarizmi, TN 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 583 2157 462 SINET-AS Research Organization of Infor 36914 503 81 36 KENET-AS, KE 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 2018 375 319 72 TENET-1, ZA 680 276 1918 245 DFN Verein zur Foerderung eines Deutsch 5786 199 16 1 UPRENET, PR 4538 191 4190 72 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 177 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 503 467 KENET-AS, KE 7497 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 375 303 TENET-1, ZA 5786 199 198 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 8895 135 131 ISU Internet Services Unit ISU, SA 18558 134 130 NETBLK-RCOEK, US 4538 191 119 ERX-CERNET-BKB China Education and Research Net 1916 158 115 Rede Nacional de Ensino e Pesquisa, BR 55824 117 106 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 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 65591 UNALLOCATED 196.21.92.0/22 2018 TENET-1, ZA 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 /15:118 /16:1734 /17:368 /18:375 /19:444 /20:715 /21:738 /22:1111 /23:1274 /24:7945 /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 483 503 KENET-AS, KE 8895 130 135 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 35 50 LONI, US 25977 30 44 HCCS, US 28614 30 36 Fundacao Universidade Regional de Blumenau, BR 263282 29 32 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 200521 28 51 SEAP-AGE, ES 36794 24 26 SCOCA, US 1968 22 34 UMASSNET-AS1968, US 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 41:187 42:15 44:4 45:25 46:5 49:7 52:1 58:12 59:9 60:4 61:3 62:11 63:3 64:30 65:1 66:10 67:41 68:1 69:21 70:2 72:7 74:13 76:39 77:8 78:2 79:10 80:17 81:25 82:6 83:6 84:7 85:28 86:5 87:1 89:9 91:44 92:2 93:4 94:4 95:1 97:1 98:2 101:8 103:248 104:76 108:2 109:10 110:2 111:7 116:6 118:18 119:21 121:20 122:8 123:8 124:39 125:4 128:65 129:36 130:86 131:43 132:52 133:149 134:33 136:199 137:49 138:9 139:5 140:41 141:1 143:23 144:23 146:131 147:25 148:191 149:12 150:122 151:7 152:72 153:14 154:22 155:51 156:68 157:23 158:36 159:113 160:27 161:16 162:12 163:66 164:10 165:8 166:1 167:8 168:117 169:9 170:55 171:1 172:3 173:6 175:31 176:8 177:8 179:9 180:17 181:1 182:1 184:2 185:33 186:3 187:17 188:13 189:3 190:15 191:35 192:1197 193:285 194:132 195:40 196:138 197:286 198:281 199:122 200:214 201:35 202:469 203:233 204:270 205:37 206:70 207:82 208:60 209:91 210:138 211:14 212:165 213:5 216:35 217:11 218:21 219:12 220:6 222:6 223:9 End of report