IPv4 R&E Routing Table Report 18:50 GMT Sun 26 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: 14984 Prefixes after maximum aggregation (per Origin AS): 8466 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 9395 Number of IPv4 prefixes with a valid ROA: 4084 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 10858 Total ASes present in the Internet Routing Table: 2205 Prefixes per ASN: 6.80 Origin-only ASes present in the Internet Routing Table: 1883 Origin ASes announcing only one prefix: 852 Transit ASes present in the Internet Routing Table: 322 Transit-only ASes present in the Internet Routing Table: 63 Paths with bogon ASNs present in the IPv4 Routing Table: 0 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: 2 Number of instances of unregistered ASNs: 2 Number of 32-bit ASNs allocated by the RIRs: 41307 Number of 32-bit ASNs visible in the Routing Table: 497 Prefixes from 32-bit ASNs in the Routing Table: 1295 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: 183031040 Equivalent to 10 /8s, 232 /16s and 213 /24s Percentage of available address space announced: 4.9 Percentage of allocated address space announced: 4.9 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: 1844 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3779 Total APNIC prefixes after maximum aggregation: 2009 APNIC Deaggregation factor: 1.88 Prefixes being announced from the APNIC address blocks: 3780 Unique aggregates announced from the APNIC address blocks: 2195 APNIC Region origin ASes present in the Internet Routing Table: 468 APNIC Prefixes per ASN: 8.08 APNIC Region origin ASes announcing only one prefix: 207 APNIC Region transit ASes present in the Internet Routing Table: 57 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: 178 Number of APNIC addresses announced to Internet: 44476672 Equivalent to 2 /8s, 166 /16s and 169 /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: 5523 Total ARIN prefixes after maximum aggregation: 3092 ARIN Deaggregation factor: 1.79 Prefixes being announced from the ARIN address blocks: 5536 Unique aggregates announced from the ARIN address blocks: 3472 ARIN Region origin ASes present in the Internet Routing Table: 904 ARIN Prefixes per ASN: 6.12 ARIN Region origin ASes announcing only one prefix: 319 ARIN Region transit ASes present in the Internet Routing Table: 126 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: 76926720 Equivalent to 4 /8s, 149 /16s and 207 /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: 3326 Total RIPE prefixes after maximum aggregation: 2650 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3317 Unique aggregates announced from the RIPE address blocks: 2689 RIPE Region origin ASes present in the Internet Routing Table: 606 RIPE Prefixes per ASN: 5.47 RIPE Region origin ASes announcing only one prefix: 269 RIPE Region transit ASes present in the Internet Routing Table: 94 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: 122 Number of RIPE addresses announced to Internet: 55908352 Equivalent to 3 /8s, 85 /16s and 24 /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: 1339 Total LACNIC prefixes after maximum aggregation: 553 LACNIC Deaggregation factor: 2.42 Prefixes being announced from the LACNIC address blocks: 1336 Unique aggregates announced from the LACNIC address blocks: 768 LACNIC Region origin ASes present in the Internet Routing Table: 152 LACNIC Prefixes per ASN: 8.79 LACNIC Region origin ASes announcing only one prefix: 55 LACNIC Region transit ASes present in the Internet Routing Table: 23 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: 61 Number of LACNIC addresses announced to Internet: 3967232 Equivalent to 0 /8s, 60 /16s and 137 /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: 1015 Total AfriNIC prefixes after maximum aggregation: 160 AfriNIC Deaggregation factor: 6.34 Prefixes being announced from the AfriNIC address blocks: 1014 Unique aggregates announced from the AfriNIC address blocks: 270 AfriNIC Region origin ASes present in the Internet Routing Table: 11 AfriNIC Prefixes per ASN: 92.18 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: 1751552 Equivalent to 0 /8s, 26 /16s and 186 /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 463 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 4538 191 4192 73 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 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 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 104 24 47 Red Universitaria Nacional, CL 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 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 498 81 36 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 583 2157 463 SINET-AS Research Organization of Infor 36914 498 81 36 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 199 16 1 UPRENET, PR 4538 191 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 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 498 462 KENET-AS, KE 7497 435 411 CSTNET-AS-AP Computer Network Information Cente 2018 379 307 TENET-1, ZA 5786 199 198 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 8895 136 132 ISU Internet Services Unit ISU, SA 18558 134 130 NETBLK-RCOEK, US 4538 191 118 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 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 /16:1733 /17:366 /18:374 /19:441 /20:710 /21:733 /22:1121 /23:1276 /24:8045 /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 478 498 KENET-AS, KE 8895 131 136 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 34 49 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 25 46 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) ---------------------------------------------- 1:1 5:15 8:2 14:88 23:5 24:2 31:7 35:6 38:6 41:186 42:15 44:4 45:27 46:5 49:7 52:1 58:12 59:9 60:4 61:3 62:11 63:3 64:25 65:1 66:11 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 84:6 85:28 86:5 87:1 89:9 91:42 92:2 93:4 94:4 95:1 97:1 98:2 101:8 102:1 103:253 104:76 108:2 109:10 110:2 111:8 116:6 118:18 119:21 121:20 122:8 123:8 124:39 125:4 128:65 129:36 130:86 131:41 132:42 133:149 134:33 136:199 137:49 138:9 139:5 140:42 141:1 143:23 144:23 146:131 147:23 148:191 149:12 150:122 151:9 152:79 153:14 154:23 155:51 156:67 157:28 158:36 159:114 160:27 161:16 162:12 163:66 164:10 165:8 166:1 167:12 168:118 169:9 170:59 171:1 172:3 173:6 175:31 176:8 177:9 179:10 180:17 181:1 182:1 184:1 185:32 186:3 187:17 188:13 189:3 190:18 191:35 192:1194 193:331 194:132 195:87 196:139 197:282 198:281 199:121 200:215 201:36 202:469 203:233 204:270 205:37 206:69 207:81 208:64 209:91 210:138 211:13 212:166 213:5 216:33 217:11 218:21 219:12 220:6 222:6 223:9 End of report