IPv4 R&E Routing Table Report 17:00 GMT Sat 02 Mar, 2024 IPv4 BGP Table (R&E) as seen at GEANT. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/GEANT/ Analysis Summary ---------------- BGP routing table entries examined: 18752 Prefixes after maximum aggregation (per Origin AS): 10578 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 11704 Number of IPv4 prefixes with a valid ROA: 5840 Number of IPv4 prefixes with an invalid ROA: 9 Number of IPv4 prefixes with no ROA: 12903 Total ASes present in the Internet Routing Table: 2743 Prefixes per ASN: 6.84 Origin-only ASes present in the Internet Routing Table: 2381 Origin ASes announcing only one prefix: 1053 Transit ASes present in the Internet Routing Table: 362 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: 3.7 Max AS path length visible: 15 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 11 Number of instances of unregistered ASNs: 11 Number of 32-bit ASNs allocated by the RIRs: 43748 Number of 32-bit ASNs visible in the Routing Table: 643 Prefixes from 32-bit ASNs in the Routing Table: 2007 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: 202768432 Equivalent to 12 /8s, 22 /16s and 0 /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: 99.6 Total number of prefixes smaller than registry allocations: 2100 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4656 Total APNIC prefixes after maximum aggregation: 2254 APNIC Deaggregation factor: 2.07 Prefixes being announced from the APNIC address blocks: 4656 Unique aggregates announced from the APNIC address blocks: 2585 APNIC Region origin ASes present in the Internet Routing Table: 534 APNIC Prefixes per ASN: 8.72 APNIC Region origin ASes announcing only one prefix: 226 APNIC Region transit ASes present in the Internet Routing Table: 56 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 204 Number of APNIC addresses announced to Internet: 45541952 Equivalent to 2 /8s, 182 /16s and 234 /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, 131072-153913 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: 7991 Total ARIN prefixes after maximum aggregation: 4651 ARIN Deaggregation factor: 1.72 Prefixes being announced from the ARIN address blocks: 8016 Unique aggregates announced from the ARIN address blocks: 5167 ARIN Region origin ASes present in the Internet Routing Table: 1236 ARIN Prefixes per ASN: 6.49 ARIN Region origin ASes announcing only one prefix: 428 ARIN Region transit ASes present in the Internet Routing Table: 155 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: 194 Number of ARIN addresses announced to Internet: 92646592 Equivalent to 5 /8s, 133 /16s and 172 /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: 3697 Total RIPE prefixes after maximum aggregation: 2915 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3684 Unique aggregates announced from the RIPE address blocks: 2954 RIPE Region origin ASes present in the Internet Routing Table: 697 RIPE Prefixes per ASN: 5.29 RIPE Region origin ASes announcing only one prefix: 314 RIPE Region transit ASes present in the Internet Routing Table: 104 Average RIPE Region AS path length visible: 2.9 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 149 Number of RIPE addresses announced to Internet: 57752208 Equivalent to 3 /8s, 113 /16s and 58 /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 196608-216475 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: 1418 Total LACNIC prefixes after maximum aggregation: 574 LACNIC Deaggregation factor: 2.47 Prefixes being announced from the LACNIC address blocks: 1416 Unique aggregates announced from the LACNIC address blocks: 772 LACNIC Region origin ASes present in the Internet Routing Table: 165 LACNIC Prefixes per ASN: 8.58 LACNIC Region origin ASes announcing only one prefix: 60 LACNIC Region transit ASes present in the Internet Routing Table: 27 Average LACNIC Region AS path length visible: 4.8 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 69 Number of LACNIC addresses announced to Internet: 4219296 Equivalent to 0 /8s, 64 /16s and 97 /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: 979 Total AfriNIC prefixes after maximum aggregation: 175 AfriNIC Deaggregation factor: 5.59 Prefixes being announced from the AfriNIC address blocks: 979 Unique aggregates announced from the AfriNIC address blocks: 225 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 19.98 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 8 Average AfriNIC Region AS path length visible: 2.7 Max AfriNIC Region AS path length visible: 7 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2608128 Equivalent to 0 /8s, 39 /16s and 204 /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 596 2162 465 SINET-AS Research Organization of Infor 7497 441 180 23 CSTNET-AS-AP Computer Network Informati 1237 194 74 142 KREONET-AS-KR KISTI, KR 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 4538 181 4193 75 ERX-CERNET-BKB China Education and Rese 7575 173 329 116 AARNET-AS-AP Australian Academic and Re 55824 129 19 18 NKN-CORE-NW NKN Core Network, IN 4762 71 4 1 MAHIDOL-BORDER-AS Mahidol University, T 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T 4621 65 37 10 UNINET-AS-AP UNINET-, TH Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 203 648 172 DNIC-AS-00668, US 376 201 162 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 2152 144 507 93 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 81 126 521 30 NCREN, US 270 117 328 81 AS270, US 32440 113 35 18 LONI, US 23024 106 7 27 OCDE, US 2920 102 34 7 LACOE, US Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 284 1899 250 DFN Verein zur Foerderung eines Deutsch 786 184 1767 181 JANET Jisc Services Limited, GB 8895 161 24 5 ISU Internet Services Unit ISU, SA 559 114 533 104 SWITCH Peering requests: peering@switch 1103 95 1503 83 SURFNET-NL SURFnet, The Netherlands, NL 3267 94 45 57 RUNNET, RU 2614 93 27 73 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol 553 78 462 78 BELWUE BelWue-Koordination, DE Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 175 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 154 10 67 Universidad Juarez Autonoma de Tabasco, 11340 108 25 51 Red Universitaria Nacional, CL 271640 68 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 49 16 2 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 44 99 34 Fundacao Carlos Chagas Filho de Amparo 61468 43 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 3596 36 4 3 Universidad Autonoma Metropolitana, MX Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 376 319 71 TENET-1, ZA 36914 202 82 3 KENET-AS, KE 327687 162 28 3 RENU, UG 8094 47 48 18 PUKNET, ZA 327700 45 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 37654 11 1 6 RwEdNet-AS, RW 37215 9 8 1 MAREN, MW Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 596 2162 465 SINET-AS Research Organization of Infor 7497 441 180 23 CSTNET-AS-AP Computer Network Informati 2018 376 319 71 TENET-1, ZA 680 284 1899 250 DFN Verein zur Foerderung eines Deutsch 668 203 648 172 DNIC-AS-00668, US 36914 202 82 3 KENET-AS, KE 376 201 162 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 1237 194 74 142 KREONET-AS-KR KISTI, KR 786 184 1767 181 JANET Jisc Services Limited, GB Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 441 418 CSTNET-AS-AP Computer Network Information Cente 2018 376 305 TENET-1, ZA 36914 202 199 KENET-AS, KE 5786 197 196 UPRENET, PR 58647 182 180 KAGAWAU-AS Kagawa University, JP 327687 162 159 RENU, UG 8895 161 156 ISU Internet Services Unit ISU, SA 1916 175 132 Rede Nacional de Ensino e Pesquisa, BR 18558 136 132 NETBLK-RCOEK, US 55824 129 111 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/GEANT/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 11570 UNALLOCATED 192.94.216.0/24 40498 ABQG, US 11570 UNALLOCATED 192.207.226.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.106.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.107.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.108.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.188.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.189.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.190.0/24 40498 ABQG, US 11570 UNALLOCATED 204.134.85.0/24 40498 ABQG, US Complete listing at https://bgp.nsrc.org/REN/GEANT/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/GEANT/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 /10:1 /11:1 /12:10 /13:19 /14:35 /15:121 /16:2012 /17:427 /18:447 /19:573 /20:854 /21:893 /22:1490 /23:1533 /24:10129 /25:82 /26:50 /27:66 /28:1 /29:0 /30:0 /31:1 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 189 202 KENET-AS, KE 8895 156 161 ISU Internet Services Unit ISU, SA 32440 80 113 LONI, US 23024 52 106 OCDE, US 3267 45 94 RUNNET, RU 327700 39 45 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 200521 32 54 SEAP-AGE, ES 25977 30 44 HCCS, US Complete listing at https://bgp.nsrc.org/REN/GEANT/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 6:4 8:2 12:1 14:90 23:5 24:3 31:1 35:6 38:8 40:1 41:121 42:16 44:7 45:43 46:5 47:1 49:9 50:1 52:1 58:10 59:20 60:6 61:3 62:15 63:32 64:44 65:1 66:45 67:41 68:10 69:16 70:2 71:1 72:7 74:51 76:41 77:11 78:3 79:10 80:15 81:26 82:5 83:7 84:11 85:46 86:9 87:1 89:10 91:50 92:2 93:5 94:2 95:2 96:5 97:1 98:2 101:5 102:39 103:268 104:74 108:8 109:7 111:16 114:24 116:8 117:61 118:34 119:19 121:28 122:8 123:8 124:42 125:5 128:86 129:37 130:83 131:65 132:59 133:157 134:110 136:196 137:137 138:57 139:5 140:38 141:3 142:38 143:23 144:25 145:2 146:135 147:30 148:194 149:12 150:43 151:12 152:132 153:14 154:29 155:63 156:67 157:17 158:34 159:115 160:30 161:15 162:20 163:81 164:14 165:47 166:1 167:13 168:118 169:6 170:90 172:3 173:7 175:25 176:8 177:5 179:12 180:15 181:1 182:1 184:2 185:57 186:3 187:17 188:14 189:3 190:17 191:12 192:1472 193:276 194:149 195:92 196:198 197:116 198:472 199:279 200:274 201:37 202:597 203:421 204:351 205:129 206:180 207:144 208:72 209:113 210:194 211:15 212:162 213:5 214:8 216:83 217:10 218:22 219:5 220:17 222:3 223:14 End of report