IPv4 R&E Routing Table Report 18:50 GMT Fri 25 Nov, 2022 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: 17069 Prefixes after maximum aggregation (per Origin AS): 9478 Deaggregation factor: 1.80 Unique aggregates announced (without unneeded subnets): 10538 Number of IPv4 prefixes with a valid ROA: 4237 Number of IPv4 prefixes with an invalid ROA: 12 Number of IPv4 prefixes with no ROA: 12820 Total ASes present in the Internet Routing Table: 2535 Prefixes per ASN: 6.73 Origin-only ASes present in the Internet Routing Table: 2189 Origin ASes announcing only one prefix: 994 Transit ASes present in the Internet Routing Table: 346 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: 5.2 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: 40719 Number of 32-bit ASNs visible in the Routing Table: 585 Prefixes from 32-bit ASNs in the Routing Table: 1576 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: 195509760 Equivalent to 11 /8s, 167 /16s and 62 /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: 2053 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4663 Total APNIC prefixes after maximum aggregation: 2289 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4664 Unique aggregates announced from the APNIC address blocks: 2599 APNIC Region origin ASes present in the Internet Routing Table: 583 APNIC Prefixes per ASN: 8.00 APNIC Region origin ASes announcing only one prefix: 254 APNIC Region transit ASes present in the Internet Routing Table: 62 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 226 Number of APNIC addresses announced to Internet: 46034432 Equivalent to 2 /8s, 190 /16s and 110 /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: 6539 Total ARIN prefixes after maximum aggregation: 3649 ARIN Deaggregation factor: 1.79 Prefixes being announced from the ARIN address blocks: 6554 Unique aggregates announced from the ARIN address blocks: 4025 ARIN Region origin ASes present in the Internet Routing Table: 1048 ARIN Prefixes per ASN: 6.25 ARIN Region origin ASes announcing only one prefix: 377 ARIN Region transit ASes present in the Internet Routing Table: 141 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: 154 Number of ARIN addresses announced to Internet: 85832448 Equivalent to 5 /8s, 29 /16s and 179 /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: 3484 Total RIPE prefixes after maximum aggregation: 2802 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3473 Unique aggregates announced from the RIPE address blocks: 2854 RIPE Region origin ASes present in the Internet Routing Table: 665 RIPE Prefixes per ASN: 5.22 RIPE Region origin ASes announcing only one prefix: 297 RIPE Region transit ASes present in the Internet Routing Table: 99 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: 137 Number of RIPE addresses announced to Internet: 57674752 Equivalent to 3 /8s, 112 /16s and 12 /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: 1415 Total LACNIC prefixes after maximum aggregation: 575 LACNIC Deaggregation factor: 2.46 Prefixes being announced from the LACNIC address blocks: 1413 Unique aggregates announced from the LACNIC address blocks: 786 LACNIC Region origin ASes present in the Internet Routing Table: 161 LACNIC Prefixes per ASN: 8.78 LACNIC Region origin ASes announcing only one prefix: 64 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: 65 Number of LACNIC addresses announced to Internet: 4215296 Equivalent to 0 /8s, 64 /16s and 82 /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: 963 Total AfriNIC prefixes after maximum aggregation: 158 AfriNIC Deaggregation factor: 6.09 Prefixes being announced from the AfriNIC address blocks: 963 Unique aggregates announced from the AfriNIC address blocks: 272 AfriNIC Region origin ASes present in the Internet Routing Table: 10 AfriNIC Prefixes per ASN: 96.30 AfriNIC Region origin ASes announcing only one prefix: 2 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: 1752320 Equivalent to 0 /8s, 26 /16s and 189 /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 569 2156 456 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 174 329 120 AARNET-AS-AP Australian Academic and Re 55824 113 18 10 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 146 507 90 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US 2920 108 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 680 276 1934 245 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 117 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 99 1520 87 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 158 208 43 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 97 24 55 Red Universitaria Nacional, CL 1251 59 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 28571 40 40 18 UNIVERSIDADE DE SAO PAULO, BR 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 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 480 81 36 KENET-AS, KE 2018 377 319 72 TENET-1, ZA 2561 68 4 33 EUN, EG 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 3208 1 2 1 ARN, DZ 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 569 2156 456 SINET-AS Research Organization of Infor 36914 480 81 36 KENET-AS, KE 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 2018 377 319 72 TENET-1, ZA 680 276 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 480 444 KENET-AS, KE 7497 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 377 305 TENET-1, ZA 5786 199 198 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 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 8895 117 113 ISU Internet Services Unit ISU, SA 55824 113 103 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 /16:1884 /17:394 /18:401 /19:509 /20:798 /21:812 /22:1285 /23:1441 /24:9356 /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 460 480 KENET-AS, KE 8895 112 117 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 34 49 LONI, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 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) ---------------------------------------------- 1:4 5:15 8:2 12:1 14:85 18:43 23:5 24:2 31:7 35:4 37:1 38:7 40:1 41:187 42:15 44:5 45:34 46:5 47:1 49:10 52:1 58:12 59:21 60:4 61:3 62:9 63:33 64:50 65:1 66:31 67:42 68:8 69:21 70:2 71:1 72:7 74:50 76:37 77:6 78:3 79:10 80:17 81:28 82:8 83:6 84:5 85:41 86:6 87:1 88:1 89:10 91:47 92:1 93:4 94:4 95:3 97:2 98:2 101:8 102:1 103:309 104:71 108:8 109:10 110:4 111:15 114:23 116:6 117:61 118:33 119:23 121:28 122:8 123:8 124:39 125:4 128:84 129:37 130:88 131:46 132:54 133:146 134:90 136:199 137:57 138:9 139:4 140:41 141:1 143:24 144:23 145:1 146:131 147:55 148:191 149:12 150:130 151:7 152:71 153:14 154:22 155:52 156:68 157:23 158:39 159:115 160:26 161:19 162:19 163:66 164:10 165:51 166:1 167:12 168:124 169:10 170:56 171:1 172:2 173:7 175:31 176:8 177:10 179:10 180:17 181:1 182:3 184:3 185:44 186:3 187:17 188:13 189:3 190:18 191:36 192:1315 193:312 194:145 195:89 196:139 197:263 198:334 199:149 200:232 201:38 202:627 203:429 204:297 205:53 206:99 207:102 208:63 209:93 210:182 211:13 212:151 213:5 216:63 217:11 218:22 219:12 220:15 222:6 223:11 End of report