IPv4 R&E Routing Table Report 18:50 GMT Mon 02 Jan, 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: 17094 Prefixes after maximum aggregation (per Origin AS): 9484 Deaggregation factor: 1.80 Unique aggregates announced (without unneeded subnets): 10541 Number of IPv4 prefixes with a valid ROA: 4302 Number of IPv4 prefixes with an invalid ROA: 12 Number of IPv4 prefixes with no ROA: 12780 Total ASes present in the Internet Routing Table: 2530 Prefixes per ASN: 6.76 Origin-only ASes present in the Internet Routing Table: 2189 Origin ASes announcing only one prefix: 985 Transit ASes present in the Internet Routing Table: 341 Transit-only ASes present in the Internet Routing Table: 60 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 5.2 Max AS path length visible: 20 Max AS path prepend of ASN ( 10497) 11 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: 41005 Number of 32-bit ASNs visible in the Routing Table: 586 Prefixes from 32-bit ASNs in the Routing Table: 1573 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 2 Number of addresses announced to Internet: 195599360 Equivalent to 11 /8s, 168 /16s and 156 /24s Percentage of available address space announced: 5.3 Percentage of allocated address space announced: 5.3 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: 2059 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4663 Total APNIC prefixes after maximum aggregation: 2288 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4664 Unique aggregates announced from the APNIC address blocks: 2618 APNIC Region origin ASes present in the Internet Routing Table: 580 APNIC Prefixes per ASN: 8.04 APNIC Region origin ASes announcing only one prefix: 251 APNIC Region transit ASes present in the Internet Routing Table: 63 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 227 Number of APNIC addresses announced to Internet: 45969664 Equivalent to 2 /8s, 189 /16s and 113 /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: 6546 Total ARIN prefixes after maximum aggregation: 3651 ARIN Deaggregation factor: 1.79 Prefixes being announced from the ARIN address blocks: 6562 Unique aggregates announced from the ARIN address blocks: 4022 ARIN Region origin ASes present in the Internet Routing Table: 1053 ARIN Prefixes per ASN: 6.23 ARIN Region origin ASes announcing only one prefix: 377 ARIN Region transit ASes present in the Internet Routing Table: 140 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 156 Number of ARIN addresses announced to Internet: 85915392 Equivalent to 5 /8s, 30 /16s and 247 /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: 3501 Total RIPE prefixes after maximum aggregation: 2804 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3490 Unique aggregates announced from the RIPE address blocks: 2850 RIPE Region origin ASes present in the Internet Routing Table: 664 RIPE Prefixes per ASN: 5.26 RIPE Region origin ASes announcing only one prefix: 295 RIPE Region transit ASes present in the Internet Routing Table: 97 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 134 Number of RIPE addresses announced to Internet: 57747968 Equivalent to 3 /8s, 113 /16s and 42 /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: 1397 Total LACNIC prefixes after maximum aggregation: 573 LACNIC Deaggregation factor: 2.44 Prefixes being announced from the LACNIC address blocks: 1394 Unique aggregates announced from the LACNIC address blocks: 781 LACNIC Region origin ASes present in the Internet Routing Table: 158 LACNIC Prefixes per ASN: 8.82 LACNIC Region origin ASes announcing only one prefix: 61 LACNIC Region transit ASes present in the Internet Routing Table: 25 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: 66 Number of LACNIC addresses announced to Internet: 4214528 Equivalent to 0 /8s, 64 /16s and 79 /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: 982 Total AfriNIC prefixes after maximum aggregation: 163 AfriNIC Deaggregation factor: 6.02 Prefixes being announced from the AfriNIC address blocks: 982 Unique aggregates announced from the AfriNIC address blocks: 268 AfriNIC Region origin ASes present in the Internet Routing Table: 10 AfriNIC Prefixes per ASN: 98.20 AfriNIC Region origin ASes announcing only one prefix: 1 AfriNIC Region transit ASes present in the Internet Routing Table: 5 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: 1751296 Equivalent to 0 /8s, 26 /16s and 185 /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 2157 462 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 4538 191 4192 73 ERX-CERNET-BKB China Education and Rese 1237 186 74 134 KREONET-AS-KR KISTI, KR 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 118 AARNET-AS-AP Australian Academic and Re 55824 113 18 11 NKN-CORE-NW NKN Core Network, IN 4621 70 37 10 UNINET-AS-AP UNINET-, TH 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 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 145 507 89 CSUNET-NW, US 18558 133 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 1736 81 16 1 MU-AS, US 3 78 496 15 MIT-GATEWAYS, 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 680 279 1934 245 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 134 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 96 1518 86 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 63 583 58 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 157 208 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 97 24 55 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 44 16 1 Red de Interconexion Universitaria, AR 61468 42 3 15 CEDIA, EC 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 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 472 81 40 KENET-AS, KE 2018 374 319 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 3 0 2 ILRI, KE 328225 3 0 1 Strathmore-University, KE 328762 2 0 2 Mansoora-University, EG 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 581 2157 462 SINET-AS Research Organization of Infor 36914 472 81 40 KENET-AS, KE 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 2018 374 319 72 TENET-1, ZA 680 279 1934 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 186 74 134 KREONET-AS-KR KISTI, KR 58647 175 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 472 432 KENET-AS, KE 7497 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 374 302 TENET-1, ZA 5786 199 198 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 134 130 ISU Internet Services Unit ISU, SA 18558 133 129 NETBLK-RCOEK, US 4538 191 118 ERX-CERNET-BKB China Education and Research Net 1916 157 114 Rede Nacional de Ensino e Pesquisa, BR 55824 113 102 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 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/KENET/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/KENET/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Transit: 20965 GEANT The GEANT IP Service, NL 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 /14:35 /15:121 /16:1886 /17:393 /18:401 /19:513 /20:796 /21:808 /22:1274 /23:1442 /24:9392 /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 452 472 KENET-AS, KE 8895 129 134 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 34 49 LONI, US 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 28614 30 36 Fundacao Universidade Regional de Blumenau, BR 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 40326 29 33 ECKERD-COLLEGE, 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 14:84 18:43 23:5 24:2 31:7 35:4 38:7 40:1 41:184 42:15 44:5 45:32 46:5 47:1 49:10 52:1 58:12 59:21 60:4 61:3 62:10 63:33 64:50 65:1 66:30 67:42 68:8 69:21 70:2 71:1 72:7 74:50 76:37 77:8 78:3 79:10 80:17 81:28 82:7 83:6 84:5 85:42 86:5 87:1 89:10 91:47 92:1 93:4 94:4 95:3 97:2 98:2 101:8 102:1 103:317 104:71 108:8 109:10 110:2 111:15 114:23 116:6 117:61 118:33 119:22 121:28 122:8 123:8 124:39 125:4 128:84 129:38 130:87 131:47 132:54 133:149 134:91 136:199 137:57 138:9 139:5 140:41 143:23 144:23 145:1 146:129 147:55 148:192 149:12 150:130 151:7 152:71 153:14 154:22 155:52 156:68 157:34 158:38 159:115 160:26 161:19 162:19 163:66 164:10 165:51 166:1 167:12 168:124 169:10 170:55 171:1 172:2 173:7 175:31 176:8 177:10 179:10 180:17 181:1 182:1 184:3 185:43 186:3 187:17 188:13 189:3 190:18 191:36 192:1319 193:341 194:145 195:85 196:138 197:258 198:333 199:149 200:228 201:36 202:628 203:423 204:298 205:55 206:101 207:100 208:64 209:92 210:182 211:14 212:165 213:5 216:65 217:11 218:22 219:12 220:15 222:6 223:11 End of report