IPv4 R&E Routing Table Report 20:20 GMT Mon 16 Feb, 2026 IPv4 BGP Table (R&E) as seen at Erdemnet. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Erdemnet/ Analysis Summary ---------------- BGP routing table entries examined: 22574 Prefixes after maximum aggregation (per Origin AS): 12592 Deaggregation factor: 1.79 Unique aggregates announced (without unneeded subnets): 12109 Number of IPv4 prefixes with a valid ROA: 8669 Number of IPv4 prefixes with an invalid ROA: 2790 Number of IPv4 prefixes with no ROA: 11115 Total ASes present in the Internet Routing Table: 2806 Prefixes per ASN: 8.04 Origin-only ASes present in the Internet Routing Table: 2424 Origin ASes announcing only one prefix: 1086 Transit ASes present in the Internet Routing Table: 382 Transit-only ASes present in the Internet Routing Table: 62 Paths with bogon ASNs present in the IPv4 Routing Table: 2314 Average AS path length visible in the Internet Routing Table: 5.6 Max AS path length visible: 35 Max AS path prepend of ASN (152692) 32 Prefixes from unregistered ASNs in the Routing Table: 2325 Number of instances of unregistered ASNs: 2325 Number of 32-bit ASNs allocated by the RIRs: 48744 Number of 32-bit ASNs visible in the Routing Table: 726 Prefixes from 32-bit ASNs in the Routing Table: 2011 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: 4 Number of addresses announced to Internet: 198944512 Equivalent to 11 /8s, 219 /16s and 167 /24s Percentage of available address space announced: 5.4 Percentage of allocated address space announced: 5.4 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: 4830 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 5650 Total APNIC prefixes after maximum aggregation: 2501 APNIC Deaggregation factor: 2.26 Prefixes being announced from the APNIC address blocks: 7965 Unique aggregates announced from the APNIC address blocks: 2936 APNIC Region origin ASes present in the Internet Routing Table: 658 APNIC Prefixes per ASN: 12.10 APNIC Region origin ASes announcing only one prefix: 279 APNIC Region transit ASes present in the Internet Routing Table: 61 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 272 Number of APNIC addresses announced to Internet: 45671936 Equivalent to 2 /8s, 184 /16s and 230 /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, 131072-155961 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: 8758 Total ARIN prefixes after maximum aggregation: 4911 ARIN Deaggregation factor: 1.78 Prefixes being announced from the ARIN address blocks: 8777 Unique aggregates announced from the ARIN address blocks: 5469 ARIN Region origin ASes present in the Internet Routing Table: 1299 ARIN Prefixes per ASN: 6.76 ARIN Region origin ASes announcing only one prefix: 460 ARIN Region transit ASes present in the Internet Routing Table: 164 Average ARIN Region AS path length visible: 6.4 Max ARIN Region AS path length visible: 18 Number of ARIN region 32-bit ASNs visible in the Routing Table: 220 Number of ARIN addresses announced to Internet: 89270016 Equivalent to 5 /8s, 82 /16s and 39 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 3424 Total RIPE prefixes after maximum aggregation: 2719 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3407 Unique aggregates announced from the RIPE address blocks: 2770 RIPE Region origin ASes present in the Internet Routing Table: 607 RIPE Prefixes per ASN: 5.61 RIPE Region origin ASes announcing only one prefix: 272 RIPE Region transit ASes present in the Internet Routing Table: 105 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 154 Number of RIPE addresses announced to Internet: 57579008 Equivalent to 3 /8s, 110 /16s and 150 /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, 53/8, 57/8, 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: 1205 Total LACNIC prefixes after maximum aggregation: 469 LACNIC Deaggregation factor: 2.57 Prefixes being announced from the LACNIC address blocks: 1205 Unique aggregates announced from the LACNIC address blocks: 646 LACNIC Region origin ASes present in the Internet Routing Table: 125 LACNIC Prefixes per ASN: 9.64 LACNIC Region origin ASes announcing only one prefix: 54 LACNIC Region transit ASes present in the Internet Routing Table: 22 Average LACNIC Region AS path length visible: 7.1 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 56 Number of LACNIC addresses announced to Internet: 3970048 Equivalent to 0 /8s, 60 /16s and 148 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 1212 Total AfriNIC prefixes after maximum aggregation: 203 AfriNIC Deaggregation factor: 5.97 Prefixes being announced from the AfriNIC address blocks: 1215 Unique aggregates announced from the AfriNIC address blocks: 284 AfriNIC Region origin ASes present in the Internet Routing Table: 44 AfriNIC Prefixes per ASN: 27.61 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 24 Number of AfriNIC addresses announced to Internet: 2450688 Equivalent to 0 /8s, 37 /16s and 101 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 600 2169 462 SINET-AS Research Organization of Informa 7497 454 180 23 CSTNET-AS-AP Computer Network Information 9484 453 5 6 MOBINET-AS-MN Mobinet LLC. AS Mobinet Int 1237 200 72 154 KREONET-AS-KR KISTI, KR 4538 184 4192 72 ERX-CERNET-BKB China Education and Resear 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 7575 164 281 111 AARNET-AS-AP Australian Academic and Rese 55824 153 19 21 NKN-CORE-NW NKN Core Network, IN 17882 129 8 37 UNIVISION-AS-AP UNIVISION LLC, MN 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2152 677 492 98 CENIC-2152 - CENIC, US 2920 227 44 49 LACOE - Los Angeles County Office of Educ 376 198 162 152 RISQ-AS - Reseau dInformations Scientifiq 668 184 595 157 DNIC-AS-00668 - United States Department 5786 184 16 1 UPRENET - University of Puerto Rico, PR 18558 141 18 5 NETBLK-RCOEK - Riverside County Office of 81 115 455 35 NCREN - MCNC, US 21976 94 34 16 NJEDGE-NET - NJEDge.Net, Inc., US 237 83 542 49 MERIT-AS-14 - Merit Network Inc., US 1736 79 16 1 MU-AS - Marquette University, US Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 291 1883 253 DFN Verein zur Foerderung eines Deutschen 786 209 1731 188 JANET Jisc Services Limited, GB 559 115 533 105 SWITCH Switch, Swiss Academic and Researc 8895 103 24 5 ISU Internet Services Unit ISU, SA 1103 100 1759 85 SURFNET-NL SURFnet, The Netherlands, NL 2614 87 26 67 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 1930 78 88 73 RCCN Fundacao para a Ciencia e a Tecnolog 553 75 366 75 BELWUE BelWue-Koordination, DE 2200 64 630 59 FR-RENATER Reseau National de telecommuni Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 205 177 41 Rede Nacional de Ensino e Pesquisa, BR 28391 161 10 72 Universidad Juarez Autonoma de Tabasco, M 11340 110 25 49 Red Universitaria Nacional, CL 271640 68 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 3596 66 8 4 Universidad Autonoma Metropolitana, MX 2715 57 84 39 Fundacao Carlos Chagas Filho de Amparo a 19611 53 17 2 Associacao Antonio Vieira - Unisinos, BR 61468 52 3 21 CEDIA, EC 1251 37 31 26 FUNDACAO DE AMPARO A PESQUISA DO ESTADO S 21612 27 16 1 FUNDACAO INSTITUTO OSWALDO CRUZ, BR Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 557 82 3 KENET-AS, KE 2018 375 318 69 TENET-1, ZA 2561 68 4 34 EUN, EG 8094 46 48 21 PUKNET, ZA 37215 44 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 327700 14 16 1 MoRENet, MZ 37501 11 49 6 UOFS, ZA 37654 9 1 5 RwEdNet-AS, RW 36982 8 33 8 UCT, ZA Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 65530 2482 2 931 >>UNKNOWN<< 65510 1610 1 636 >>UNKNOWN<< 2152 677 492 98 CENIC-2152 - CENIC, US 2907 600 2169 462 SINET-AS Research Organization of Informa 36914 557 82 3 KENET-AS, KE 7497 454 180 23 CSTNET-AS-AP Computer Network Information 9484 453 5 6 MOBINET-AS-MN Mobinet LLC. AS Mobinet Int 2018 375 318 69 TENET-1, ZA 680 291 1883 253 DFN Verein zur Foerderung eines Deutschen 2920 227 44 49 LACOE - Los Angeles County Office of Educ Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 65510 1610 974 -Private Use AS-, ZZ 2152 677 579 CENIC-2152 - CENIC, US 36914 557 554 KENET-AS, KE 9484 453 447 MOBINET-AS-MN Mobinet LLC. AS Mobinet Internet 7497 454 431 CSTNET-AS-AP Computer Network Information Cente 2018 375 306 TENET-1, ZA 5786 184 183 UPRENET - University of Puerto Rico, PR 58647 182 180 KAGAWAU-AS Kagawa University, JP 2920 227 178 LACOE - Los Angeles County Office of Education, 1916 205 164 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 65510 PRIVATE 45.117.32.24/29 9484 MOBINET-AS-MN Mobinet L 65530 PRIVATE 45.117.32.40/29 65510 -Private Use AS-, ZZ 65001 PRIVATE 45.117.32.48/29 65510 -Private Use AS-, ZZ 65530 PRIVATE 45.117.32.56/29 65510 -Private Use AS-, ZZ 65530 PRIVATE 45.117.32.64/29 65510 -Private Use AS-, ZZ 65530 PRIVATE 45.117.32.72/29 65510 -Private Use AS-, ZZ 65530 PRIVATE 45.117.32.80/29 65510 -Private Use AS-, ZZ 65510 PRIVATE 45.117.32.88/29 9484 MOBINET-AS-MN Mobinet L 65530 PRIVATE 45.117.32.96/29 65510 -Private Use AS-, ZZ 65510 PRIVATE 45.117.32.104/29 9484 MOBINET-AS-MN Mobinet L Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 162.212.34.0/24 Origin: 54048 CVIN - Vast Networks, US 162.212.34.0/24 Transit: 2152 CENIC-2152 - CENIC, US 164.160.192.0/21 Origin: 37661 NRaE1-AS, NG 164.160.192.0/21 Transit: 37288 WACREN, SN 202.14.117.0/24 Origin: 17827 STOU-AS-TH Sukhothai Thammathirat Open U 202.14.117.0/24 Transit: 4621 UNINET-AS-AP UNINET-, TH 203.9.156.0/24 Origin: 1851 ADELAIDE-UNIVERSITY-AS-AP Adelaide Unive 203.9.156.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- !!Default route being announced!! /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:0 /9:1 /10:1 /11:1 /12:11 /13:18 /14:33 /15:114 /16:1960 /17:417 /18:458 /19:599 /20:835 /21:900 /22:1475 /23:1644 /24:11350 /25:8 /26:4 /27:27 /28:89 /29:963 /30:1492 /31:3 /32:170 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 65530 1178 2482 -Private Use AS-, ZZ 65510 782 1610 -Private Use AS-, ZZ 36914 533 557 KENET-AS, KE 9484 353 453 MOBINET-AS-MN Mobinet LLC. AS Mobinet Internet Service Provider, MN 65516 103 206 -Private Use AS-, ZZ 8895 100 103 ISU Internet Services Unit ISU, SA 65001 98 206 -Private Use AS-, ZZ 2152 73 677 CENIC-2152 - CENIC, US 4850 71 72 DIGICOM-AS-AP Digicom LLC, MN 31638 48 48 ASN-LEPIDA, IT Complete listing at https://bgp.nsrc.org/REN/Erdemnet/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:18 6:1 8:13 12:2 14:96 23:11 24:2 27:4 31:1 35:3 36:2 37:26 38:12 40:1 41:232 42:17 43:8 44:6 45:40 46:4 47:1 49:13 50:4 58:14 59:24 60:6 61:3 62:6 63:32 64:48 65:6 66:93 67:41 68:13 69:17 70:3 72:6 74:56 76:27 77:7 78:3 79:9 80:7 81:27 82:3 83:6 84:8 85:26 86:4 87:1 89:16 91:36 93:14 94:2 95:2 96:5 97:1 98:2 101:5 102:9 103:436 104:77 108:8 109:10 111:3 112:16 113:2 114:24 116:9 117:5 118:33 119:39 121:17 122:24 123:8 124:43 125:5 128:57 129:44 130:103 131:65 132:64 133:157 134:120 136:185 137:120 138:11 139:5 140:33 141:4 142:31 143:26 144:8 145:13 146:136 147:67 148:234 149:8 150:34 151:9 152:126 153:15 154:39 155:87 156:124 157:29 158:28 159:117 160:35 161:33 162:24 163:76 164:10 165:46 166:1 167:35 168:103 169:7 170:19 171:1 173:5 175:15 177:6 179:12 180:16 181:1 182:11 183:2 184:2 185:43 186:4 187:8 188:22 190:17 191:12 192:1474 193:314 194:119 195:99 196:149 197:343 198:586 199:280 200:296 201:9 202:767 203:458 204:418 205:185 206:203 207:349 208:40 209:155 210:231 211:15 212:138 213:4 214:9 216:90 217:22 218:22 219:7 220:16 222:4 223:17 End of report