This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from RedCLARA'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 22:15 GMT Sat 08 Jan, 2022 BGP Table (R&E) as seen at RedCLARA. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/RedCLARA/ Analysis Summary ---------------- BGP routing table entries examined: 18255 Prefixes after maximum aggregation (per Origin AS): 10265 Deaggregation factor: 1.78 Unique aggregates announced (without unneeded subnets): 11418 Total ASes present in the Internet Routing Table: 2702 Prefixes per ASN: 6.76 Origin-only ASes present in the Internet Routing Table: 2334 Origin ASes announcing only one prefix: 1082 Transit ASes present in the Internet Routing Table: 368 Transit-only ASes present in the Internet Routing Table: 48 Average AS path length visible in the Internet Routing Table: 4.1 Max AS path length visible: 14 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 8 Number of instances of unregistered ASNs: 8 Number of 32-bit ASNs allocated by the RIRs: 38255 Number of 32-bit ASNs visible in the Routing Table: 600 Prefixes from 32-bit ASNs in the Routing Table: 1679 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: 203060960 Equivalent to 12 /8s, 26 /16s and 118 /24s Percentage of available address space announced: 5.5 Percentage of allocated address space announced: 5.5 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: 2162 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4573 Total APNIC prefixes after maximum aggregation: 2269 APNIC Deaggregation factor: 2.02 Prefixes being announced from the APNIC address blocks: 4576 Unique aggregates announced from the APNIC address blocks: 2517 APNIC Region origin ASes present in the Internet Routing Table: 557 APNIC Prefixes per ASN: 8.22 APNIC Region origin ASes announcing only one prefix: 243 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 208 Number of APNIC addresses announced to Internet: 45928768 Equivalent to 2 /8s, 188 /16s and 209 /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: 7812 Total ARIN prefixes after maximum aggregation: 4443 ARIN Deaggregation factor: 1.76 Prefixes being announced from the ARIN address blocks: 7812 Unique aggregates announced from the ARIN address blocks: 4973 ARIN Region origin ASes present in the Internet Routing Table: 1192 ARIN Prefixes per ASN: 6.55 ARIN Region origin ASes announcing only one prefix: 426 ARIN Region transit ASes present in the Internet Routing Table: 156 Average ARIN Region AS path length visible: 4.1 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 157 Number of ARIN addresses announced to Internet: 92187280 Equivalent to 5 /8s, 126 /16s and 170 /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: 3417 Total RIPE prefixes after maximum aggregation: 2745 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3408 Unique aggregates announced from the RIPE address blocks: 2783 RIPE Region origin ASes present in the Internet Routing Table: 669 RIPE Prefixes per ASN: 5.09 RIPE Region origin ASes announcing only one prefix: 319 RIPE Region transit ASes present in the Internet Routing Table: 101 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 134 Number of RIPE addresses announced to Internet: 58075328 Equivalent to 3 /8s, 118 /16s and 40 /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: 1533 Total LACNIC prefixes after maximum aggregation: 612 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1545 Unique aggregates announced from the LACNIC address blocks: 849 LACNIC Region origin ASes present in the Internet Routing Table: 180 LACNIC Prefixes per ASN: 8.58 LACNIC Region origin ASes announcing only one prefix: 73 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 3.8 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 76 Number of LACNIC addresses announced to Internet: 4133456 Equivalent to 0 /8s, 63 /16s and 18 /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: 912 Total AfriNIC prefixes after maximum aggregation: 188 AfriNIC Deaggregation factor: 4.85 Prefixes being announced from the AfriNIC address blocks: 912 Unique aggregates announced from the AfriNIC address blocks: 294 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 18.24 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 3.3 Max AfriNIC Region AS path length visible: 8 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2735616 Equivalent to 0 /8s, 41 /16s and 190 /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 671 2155 458 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 58647 199 18 2 KAGAWAU-AS Kagawa University, JP 1237 188 74 135 KREONET-AS-KR KISTI, KR 7575 177 330 123 AARNET-AS-AP Australian Academic and Re 4538 127 4192 72 ERX-CERNET-BKB China Education and Rese 55824 117 19 23 NKN-CORE-NW NKN Core Network, IN 4621 78 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/RedCLARA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7896 251 51 7 NU-AS, US 376 203 178 152 RISQ-AS, CA 5786 195 16 1 UPRENET, PR 2152 144 507 86 CSUNET-NW, US 18558 135 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 2920 111 34 6 LACOE, US 21976 87 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US 3 77 496 15 MIT-GATEWAYS, US Complete listing at https://bgp.nsrc.org/REN/RedCLARA/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 786 186 1774 183 JANET Jisc Services Limited, GB 8895 184 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 67 647 61 FR-RENATER Reseau National de telecommu 2614 59 33 57 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/RedCLARA/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 94 24 54 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 52286 53 4 31 Columbus Networks Guatemala, GT 19611 45 17 2 Associacao Antonio Vieira - Unisinos, B 61468 45 3 15 CEDIA, EC 4270 43 16 1 Red de Interconexion Universitaria, AR 28614 38 2 2 Fundacao Universidade Regional de Blume Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 351 319 74 TENET-1, ZA 36914 206 82 3 KENET-AS, KE 2561 72 5 31 EUN, EG 8094 50 48 4 PUKNET, ZA 327700 44 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/RedCLARA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 671 2155 458 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 2018 351 319 74 TENET-1, ZA 680 279 1950 245 DFN Verein zur Foerderung eines Deutsch 7896 251 51 7 NU-AS, US 36914 206 82 3 KENET-AS, KE 376 203 178 152 RISQ-AS, CA 1916 202 207 42 Rede Nacional de Ensino e Pesquisa, BR 58647 199 18 2 KAGAWAU-AS Kagawa University, JP 5786 195 16 1 UPRENET, PR Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 433 409 CSTNET-AS-AP Computer Network Information Cente 2018 351 277 TENET-1, ZA 7896 251 244 NU-AS, US 36914 206 203 KENET-AS, KE 58647 199 197 KAGAWAU-AS Kagawa University, JP 5786 195 194 UPRENET, PR 8895 184 180 ISU Internet Services Unit ISU, SA 1916 202 160 Rede Nacional de Ensino e Pesquisa, BR 18558 135 131 NETBLK-RCOEK, US 2920 111 105 LACOE, US Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 65248 PRIVATE 134.171.169.0/24 11340 Red Universitaria Nacional, 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 65105 PRIVATE 165.98.16.0/24 27750 Cooperacion Latino Americana 65105 PRIVATE 165.98.18.0/24 27750 Cooperacion Latino Americana 65105 PRIVATE 165.98.90.0/24 27750 Cooperacion Latino Americana 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 64663 PRIVATE 181.114.14.0/24 52286 Columbus Networks Guatemala, 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/RedCLARA/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/RedCLARA/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: 11537 INTERNET2-RESEARCH-EDU, US Complete listing at https://bgp.nsrc.org/REN/RedCLARA/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 /13:17 /14:35 /15:122 /16:1984 /17:386 /18:429 /19:553 /20:826 /21:869 /22:1401 /23:1521 /24:9801 /25:78 /26:66 /27:61 /28:21 /29:23 /30:7 /31:0 /32:41 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 192 206 KENET-AS, KE 8895 179 184 ISU Internet Services Unit ISU, SA 23024 53 56 OCDE, US 327700 38 44 MoRENet, MZ 58647 34 199 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 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 32440 29 44 LONI, US Complete listing at https://bgp.nsrc.org/REN/RedCLARA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 5:15 8:2 12:1 14:73 18:42 23:9 24:3 31:6 37:6 38:9 40:1 41:126 42:8 44:5 45:48 46:6 47:1 49:8 50:1 52:1 59:4 60:4 61:3 62:7 63:35 64:47 66:36 67:43 68:8 69:21 71:1 72:42 74:20 76:33 77:7 78:3 79:10 80:17 81:28 82:5 83:7 84:5 85:33 86:4 87:1 88:1 89:10 91:47 92:1 93:19 94:4 95:5 96:5 97:1 98:2 101:6 102:13 103:281 104:14 106:1 108:8 109:10 110:3 111:20 112:4 114:24 116:5 117:61 119:22 121:26 123:8 124:39 125:4 128:86 129:175 130:92 131:82 132:58 133:139 134:97 136:187 137:79 138:8 139:5 140:38 141:2 142:41 143:35 144:33 145:2 146:127 147:57 148:159 149:13 150:36 151:6 152:77 153:11 154:26 155:51 156:67 157:26 158:42 159:117 160:25 161:16 162:20 163:62 164:46 165:54 166:1 167:16 168:161 169:10 170:54 171:1 172:2 173:2 175:31 176:8 177:13 178:1 179:11 180:20 181:12 182:6 184:3 185:42 186:3 187:18 188:13 189:3 190:50 191:37 192:1408 193:238 194:130 195:83 196:150 197:116 198:457 199:249 200:257 201:39 202:573 203:406 204:323 205:168 206:186 207:168 208:55 209:111 210:181 211:13 212:172 213:4 216:86 217:14 218:25 219:6 220:17 222:5 223:3 End of report