This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from KREONet2's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 20:15 GMT Sat 22 Jan, 2022 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 19955 Prefixes after maximum aggregation (per Origin AS): 10878 Deaggregation factor: 1.83 Unique aggregates announced (without unneeded subnets): 12099 Number of IPv4 prefixes with a valid ROA: 4866 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 15047 Total ASes present in the Internet Routing Table: 2766 Prefixes per ASN: 7.21 Origin-only ASes present in the Internet Routing Table: 2376 Origin ASes announcing only one prefix: 1104 Transit ASes present in the Internet Routing Table: 390 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 15 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: 38362 Number of 32-bit ASNs visible in the Routing Table: 610 Prefixes from 32-bit ASNs in the Routing Table: 1696 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: 264587479 Equivalent to 15 /8s, 197 /16s and 72 /24s Percentage of available address space announced: 7.1 Percentage of allocated address space announced: 7.1 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 2570 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4895 Total APNIC prefixes after maximum aggregation: 2378 APNIC Deaggregation factor: 2.06 Prefixes being announced from the APNIC address blocks: 4776 Unique aggregates announced from the APNIC address blocks: 2607 APNIC Region origin ASes present in the Internet Routing Table: 563 APNIC Prefixes per ASN: 8.48 APNIC Region origin ASes announcing only one prefix: 248 APNIC Region transit ASes present in the Internet Routing Table: 66 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 215 Number of APNIC addresses announced to Internet: 47437420 Equivalent to 2 /8s, 211 /16s and 214 /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: 9191 Total ARIN prefixes after maximum aggregation: 4940 ARIN Deaggregation factor: 1.86 Prefixes being announced from the ARIN address blocks: 9283 Unique aggregates announced from the ARIN address blocks: 5583 ARIN Region origin ASes present in the Internet Routing Table: 1230 ARIN Prefixes per ASN: 7.55 ARIN Region origin ASes announcing only one prefix: 444 ARIN Region transit ASes present in the Internet Routing Table: 160 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 168 Number of ARIN addresses announced to Internet: 149853569 Equivalent to 8 /8s, 238 /16s and 149 /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: 3493 Total RIPE prefixes after maximum aggregation: 2803 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3519 Unique aggregates announced from the RIPE address blocks: 2842 RIPE Region origin ASes present in the Internet Routing Table: 678 RIPE Prefixes per ASN: 5.19 RIPE Region origin ASes announcing only one prefix: 320 RIPE Region transit ASes present in the Internet Routing Table: 106 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 134 Number of RIPE addresses announced to Internet: 59713994 Equivalent to 3 /8s, 143 /16s and 41 /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: 1462 Total LACNIC prefixes after maximum aggregation: 564 LACNIC Deaggregation factor: 2.59 Prefixes being announced from the LACNIC address blocks: 1461 Unique aggregates announced from the LACNIC address blocks: 766 LACNIC Region origin ASes present in the Internet Routing Table: 168 LACNIC Prefixes per ASN: 8.70 LACNIC Region origin ASes announcing only one prefix: 70 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67 Number of LACNIC addresses announced to Internet: 4694304 Equivalent to 0 /8s, 71 /16s and 161 /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: 911 Total AfriNIC prefixes after maximum aggregation: 190 AfriNIC Deaggregation factor: 4.79 Prefixes being announced from the AfriNIC address blocks: 914 Unique aggregates announced from the AfriNIC address blocks: 299 AfriNIC Region origin ASes present in the Internet Routing Table: 52 AfriNIC Prefixes per ASN: 17.58 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 8 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26 Number of AfriNIC addresses announced to Internet: 2887680 Equivalent to 0 /8s, 44 /16s and 16 /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 619 2157 458 SINET-AS Research Organization of Infor 7497 430 182 24 CSTNET-AS-AP Computer Network Informati 45102 241 428 87 ALIBABA-CN-NET Alibaba US Technology Co 58647 200 18 2 KAGAWAU-AS Kagawa University, JP 1237 191 74 135 KREONET-AS-KR KISTI, KR 4538 176 4192 72 ERX-CERNET-BKB China Education and Rese 7575 176 330 123 AARNET-AS-AP Australian Academic and Re 55824 115 18 11 NKN-CORE-NW NKN Core Network, IN 4621 80 37 10 UNINET-AS-AP UNINET-, TH 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 15169 737 3282 67 GOOGLE, US 7896 251 51 7 NU-AS, US 8075 206 10901 187 MICROSOFT-CORP-MSN-AS-BLOCK, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 6939 170 120 120 HURRICANE, US 2152 149 507 90 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 23024 114 7 17 OCDE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 279 1950 245 DFN Verein zur Foerderung eines Deutsch 786 185 1774 182 JANET Jisc Services Limited, GB 8895 182 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL 137 82 677 77 ASGARR Consortium GARR, IT 553 72 449 72 BELWUE BelWue-Koordination, DE 2200 68 647 61 FR-RENATER Reseau National de telecommu 2614 58 32 55 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 202 207 42 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 95 24 55 Red Universitaria Nacional, CL 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 19611 45 17 2 Associacao Antonio Vieira - Unisinos, B 61468 45 3 15 CEDIA, EC 4270 44 16 1 Red de Interconexion Universitaria, AR 28614 38 2 2 Fundacao Universidade Regional de Blume 28571 37 26 15 UNIVERSIDADE DE SAO PAULO, BR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 350 319 74 TENET-1, ZA 36914 202 82 3 KENET-AS, KE 2561 72 5 31 EUN, EG 8094 50 48 4 PUKNET, ZA 327700 43 16 1 MoRENet, MZ 327687 39 28 3 RENU, UG 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 37182 12 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 15169 737 3282 67 GOOGLE, US 2907 619 2157 458 SINET-AS Research Organization of Infor 7497 430 182 24 CSTNET-AS-AP Computer Network Informati 2018 350 319 74 TENET-1, ZA 680 279 1950 245 DFN Verein zur Foerderung eines Deutsch 7896 251 51 7 NU-AS, US 45102 241 428 87 ALIBABA-CN-NET Alibaba US Technology Co 8075 206 10901 187 MICROSOFT-CORP-MSN-AS-BLOCK, US 376 203 178 152 RISQ-AS, CA 1916 202 207 42 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 430 406 CSTNET-AS-AP Computer Network Information Cente 2018 350 276 TENET-1, ZA 7896 251 244 NU-AS, US 36914 202 199 KENET-AS, KE 5786 200 199 UPRENET, PR 58647 200 198 KAGAWAU-AS Kagawa University, JP 8895 182 178 ISU Internet Services Unit ISU, SA 2907 619 161 SINET-AS Research Organization of Information a 1916 202 160 Rede Nacional de Ensino e Pesquisa, BR 45102 241 154 ALIBABA-CN-NET Alibaba US Technology Co., Ltd., Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/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: 17579 KREONET2-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /10:4 /11:6 /12:23 /13:36 /14:82 /15:153 /16:2127 /17:445 /18:489 /19:714 /20:887 /21:911 /22:1459 /23:1598 /24:10680 /25:77 /26:62 /27:60 /28:30 /29:28 /30:19 /31:0 /32:64 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 15169 273 737 GOOGLE, US 36914 189 202 KENET-AS, KE 8895 177 182 ISU Internet Services Unit ISU, SA 6939 67 170 HURRICANE, US 23024 53 114 OCDE, US 327700 39 43 MoRENet, MZ 58647 34 200 KAGAWAU-AS Kagawa University, JP 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 5:17 8:6 12:1 13:1 14:85 18:42 23:16 24:3 31:6 35:1 37:6 38:9 40:1 41:125 42:13 44:5 45:43 46:6 47:35 49:8 50:4 52:2 58:7 59:4 60:4 61:3 62:7 63:38 64:85 65:7 66:58 67:45 68:8 69:20 70:7 71:1 72:23 74:83 76:34 77:7 78:3 79:10 80:16 81:28 82:5 83:7 84:9 85:33 86:4 87:1 88:1 89:10 91:46 92:1 93:19 94:4 95:5 96:5 97:1 98:2 101:8 102:13 103:301 104:77 106:1 107:16 108:43 109:10 110:5 111:21 112:4 113:1 114:23 116:5 117:61 119:21 121:27 124:39 125:4 128:86 129:176 130:92 131:88 132:58 133:140 134:101 136:193 137:80 138:8 139:5 140:40 141:2 142:148 143:31 144:52 145:2 146:128 147:57 148:192 149:13 150:37 151:6 152:77 153:11 154:25 155:53 156:67 157:26 158:41 159:115 160:25 161:23 162:22 163:62 164:22 165:55 166:2 167:17 168:120 169:10 170:67 171:1 172:91 173:86 175:31 176:8 177:13 178:1 179:11 180:21 181:1 182:6 184:6 185:47 186:3 187:18 188:13 189:5 190:33 191:33 192:1410 193:252 194:143 195:92 196:150 197:115 198:516 199:259 200:254 201:39 202:604 203:420 204:336 205:165 206:193 207:172 208:75 209:130 210:182 211:13 212:172 213:4 216:132 217:15 218:25 219:12 220:17 222:5 223:5 End of report