IPv4 R&E Routing Table Report 17:00 GMT Mon 15 Aug, 2022 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: 18867 Prefixes after maximum aggregation (per Origin AS): 10732 Deaggregation factor: 1.76 Unique aggregates announced (without unneeded subnets): 11966 Number of IPv4 prefixes with a valid ROA: 4154 Number of IPv4 prefixes with an invalid ROA: 67 Number of IPv4 prefixes with no ROA: 14646 Total ASes present in the Internet Routing Table: 2787 Prefixes per ASN: 6.77 Origin-only ASes present in the Internet Routing Table: 2403 Origin ASes announcing only one prefix: 1086 Transit ASes present in the Internet Routing Table: 384 Transit-only ASes present in the Internet Routing Table: 59 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 3.8 Max AS path length visible: 17 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 6 Number of instances of unregistered ASNs: 6 Number of 32-bit ASNs allocated by the RIRs: 39988 Number of 32-bit ASNs visible in the Routing Table: 643 Prefixes from 32-bit ASNs in the Routing Table: 1816 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: 207456454 Equivalent to 12 /8s, 93 /16s and 136 /24s Percentage of available address space announced: 5.6 Percentage of allocated address space announced: 5.6 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: 2218 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4733 Total APNIC prefixes after maximum aggregation: 2317 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4734 Unique aggregates announced from the APNIC address blocks: 2630 APNIC Region origin ASes present in the Internet Routing Table: 594 APNIC Prefixes per ASN: 7.97 APNIC Region origin ASes announcing only one prefix: 261 APNIC Region transit ASes present in the Internet Routing Table: 67 Average APNIC Region AS path length visible: 3.7 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 234 Number of APNIC addresses announced to Internet: 46173248 Equivalent to 2 /8s, 192 /16s and 140 /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: 8091 Total ARIN prefixes after maximum aggregation: 4754 ARIN Deaggregation factor: 1.70 Prefixes being announced from the ARIN address blocks: 8103 Unique aggregates announced from the ARIN address blocks: 5340 ARIN Region origin ASes present in the Internet Routing Table: 1229 ARIN Prefixes per ASN: 6.59 ARIN Region origin ASes announcing only one prefix: 431 ARIN Region transit ASes present in the Internet Routing Table: 162 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 179 Number of ARIN addresses announced to Internet: 96333088 Equivalent to 5 /8s, 189 /16s and 237 /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: 3638 Total RIPE prefixes after maximum aggregation: 2860 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3630 Unique aggregates announced from the RIPE address blocks: 2894 RIPE Region origin ASes present in the Internet Routing Table: 690 RIPE Prefixes per ASN: 5.26 RIPE Region origin ASes announcing only one prefix: 309 RIPE Region transit ASes present in the Internet Routing Table: 103 Average RIPE Region AS path length visible: 2.8 Max RIPE Region AS path length visible: 11 Number of RIPE region 32-bit ASNs visible in the Routing Table: 139 Number of RIPE addresses announced to Internet: 58101318 Equivalent to 3 /8s, 118 /16s and 142 /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: 1457 Total LACNIC prefixes after maximum aggregation: 583 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1456 Unique aggregates announced from the LACNIC address blocks: 793 LACNIC Region origin ASes present in the Internet Routing Table: 162 LACNIC Prefixes per ASN: 8.99 LACNIC Region origin ASes announcing only one prefix: 62 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 4.7 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: 4218400 Equivalent to 0 /8s, 64 /16s and 94 /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: 942 Total AfriNIC prefixes after maximum aggregation: 212 AfriNIC Deaggregation factor: 4.44 Prefixes being announced from the AfriNIC address blocks: 942 Unique aggregates announced from the AfriNIC address blocks: 307 AfriNIC Region origin ASes present in the Internet Routing Table: 48 AfriNIC Prefixes per ASN: 19.62 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 3.0 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 24 Number of AfriNIC addresses announced to Internet: 2629888 Equivalent to 0 /8s, 40 /16s and 33 /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 580 2156 457 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 1237 188 74 134 KREONET-AS-KR KISTI, KR 4538 188 4192 73 ERX-CERNET-BKB China Education and Rese 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 174 329 120 AARNET-AS-AP Australian Academic and Re 55824 115 18 11 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/GEANT/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 219 703 181 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 156 507 91 CSUNET-NW, US 18558 135 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 114 7 17 OCDE, US 2920 111 34 7 LACOE, US 32440 90 18 19 LONI, US 32531 90 6 60 FORDHAM-UNIVERSITY, 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 680 283 1951 250 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 178 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 99 1520 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 2200 63 583 58 FR-RENATER Reseau National de telecommu 3267 63 64 27 RUNNET, RU 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 175 208 45 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 95 24 54 Red Universitaria Nacional, CL 2715 59 102 39 Fundacao Carlos Chagas Filho de Amparo 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 61468 46 3 15 CEDIA, EC 4270 42 16 1 Red de Interconexion Universitaria, AR 28571 41 40 18 UNIVERSIDADE DE SAO PAULO, BR 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28614 37 2 2 Fundacao Universidade Regional de Blume 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 73 TENET-1, ZA 36914 228 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 38 28 3 RENU, UG 327700 34 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 19 1 13 TERNET, TZ 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 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 580 2156 457 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 2018 376 319 73 TENET-1, ZA 680 283 1951 250 DFN Verein zur Foerderung eines Deutsch 36914 228 82 3 KENET-AS, KE 668 219 703 181 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 1237 188 74 134 KREONET-AS-KR KISTI, KR 4538 188 4192 73 ERX-CERNET-BKB China Education and Rese 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 433 409 CSTNET-AS-AP Computer Network Information Cente 2018 376 303 TENET-1, ZA 36914 228 225 KENET-AS, KE 5786 200 199 UPRENET, PR 8895 178 174 ISU Internet Services Unit ISU, SA 58647 175 173 KAGAWAU-AS Kagawa University, JP 18558 135 131 NETBLK-RCOEK, US 1916 175 130 Rede Nacional de Ensino e Pesquisa, BR 4538 188 115 ERX-CERNET-BKB China Education and Research Net 55824 115 104 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 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 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/GEANT/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/GEANT/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/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 /10:2 /11:1 /12:10 /13:19 /14:36 /15:122 /16:2031 /17:408 /18:445 /19:573 /20:864 /21:889 /22:1432 /23:1569 /24:10216 /25:85 /26:56 /27:85 /28:0 /29:0 /30:0 /31:1 /32:22 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 215 228 KENET-AS, KE 8895 173 178 ISU Internet Services Unit ISU, SA 32440 75 90 LONI, US 23024 53 114 OCDE, US 46115 32 35 LUTHER, US 25977 31 45 HCCS, US 28614 31 37 Fundacao Universidade Regional de Blumenau, BR 200521 30 51 SEAP-AGE, ES 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US Complete listing at https://bgp.nsrc.org/REN/GEANT/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 5:15 6:4 8:2 12:1 14:86 18:43 23:5 24:3 31:7 35:4 37:8 38:9 40:1 41:130 42:15 44:5 45:36 46:5 47:1 49:10 50:1 52:1 58:10 59:21 60:4 61:3 62:14 63:34 64:50 65:1 66:35 67:43 68:8 69:19 70:2 71:1 72:8 74:50 76:36 77:7 78:3 79:10 80:20 81:27 82:8 83:6 84:8 85:46 86:11 87:1 88:1 89:10 91:48 92:1 93:10 94:4 95:4 96:5 97:1 98:2 101:8 102:13 103:317 104:75 108:8 109:10 110:4 111:16 114:23 116:6 117:61 118:33 119:24 121:29 122:8 123:8 124:39 125:4 128:86 129:36 130:90 131:76 132:59 133:145 134:100 136:200 137:74 138:11 139:5 140:57 141:1 142:39 143:31 144:25 145:2 146:130 147:58 148:191 149:12 150:130 151:6 152:79 153:11 154:28 155:51 156:66 157:22 158:41 159:116 160:26 161:21 162:20 163:75 164:15 165:57 166:1 167:16 168:119 169:10 170:51 172:2 173:7 175:31 176:8 177:11 179:10 180:18 181:1 182:4 184:4 185:48 186:3 187:19 188:13 189:3 190:34 191:36 192:1448 193:308 194:148 195:92 196:161 197:132 198:482 199:280 200:222 201:38 202:633 203:429 204:342 205:125 206:188 207:169 208:68 209:117 210:183 211:13 212:171 213:5 214:8 216:86 217:12 218:22 219:12 220:17 222:6 223:5 End of report