IPv4 R&E Routing Table Report 20:30 GMT Sun 20 Jul, 2025 IPv4 BGP Table (R&E) as seen at PREGINET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/PREGINET/ Analysis Summary ---------------- BGP routing table entries examined: 158145 Prefixes after maximum aggregation (per Origin AS): 62120 Deaggregation factor: 2.55 Unique aggregates announced (without unneeded subnets): 88588 Number of IPv4 prefixes with a valid ROA: 86385 Number of IPv4 prefixes with an invalid ROA: 63 Number of IPv4 prefixes with no ROA: 71697 Total ASes present in the Internet Routing Table: 14450 Prefixes per ASN: 10.94 Origin-only ASes present in the Internet Routing Table: 12173 Origin ASes announcing only one prefix: 5902 Transit ASes present in the Internet Routing Table: 2277 Transit-only ASes present in the Internet Routing Table: 533 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 53 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 80 Number of instances of unregistered ASNs: 80 Number of 32-bit ASNs allocated by the RIRs: 46910 Number of 32-bit ASNs visible in the Routing Table: 7140 Prefixes from 32-bit ASNs in the Routing Table: 29338 Number of bogon 32-bit ASNs visible in the Routing Table: 2 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 25 Number of addresses announced to Internet: 493168128 Equivalent to 29 /8s, 101 /16s and 38 /24s Percentage of available address space announced: 13.3 Percentage of allocated address space announced: 13.3 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: 39742 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 76334 Total APNIC prefixes after maximum aggregation: 23052 APNIC Deaggregation factor: 3.31 Prefixes being announced from the APNIC address blocks: 74597 Unique aggregates announced from the APNIC address blocks: 34019 APNIC Region origin ASes present in the Internet Routing Table: 4574 APNIC Prefixes per ASN: 16.31 APNIC Region origin ASes announcing only one prefix: 1676 APNIC Region transit ASes present in the Internet Routing Table: 708 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 2935 Number of APNIC addresses announced to Internet: 180932352 Equivalent to 10 /8s, 200 /16s and 207 /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: 26386 Total ARIN prefixes after maximum aggregation: 14354 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26000 Unique aggregates announced from the ARIN address blocks: 20350 ARIN Region origin ASes present in the Internet Routing Table: 2101 ARIN Prefixes per ASN: 12.38 ARIN Region origin ASes announcing only one prefix: 1008 ARIN Region transit ASes present in the Internet Routing Table: 219 Average ARIN Region AS path length visible: 5.0 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 479 Number of ARIN addresses announced to Internet: 161419520 Equivalent to 9 /8s, 159 /16s and 17 /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: 41447 Total RIPE prefixes after maximum aggregation: 19566 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 42332 Unique aggregates announced from the RIPE address blocks: 26567 RIPE Region origin ASes present in the Internet Routing Table: 4766 RIPE Prefixes per ASN: 8.88 RIPE Region origin ASes announcing only one prefix: 2211 RIPE Region transit ASes present in the Internet Routing Table: 687 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 50 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1705 Number of RIPE addresses announced to Internet: 126318848 Equivalent to 7 /8s, 135 /16s and 121 /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: 12825 Total LACNIC prefixes after maximum aggregation: 4684 LACNIC Deaggregation factor: 2.74 Prefixes being announced from the LACNIC address blocks: 12513 Unique aggregates announced from the LACNIC address blocks: 6137 LACNIC Region origin ASes present in the Internet Routing Table: 2347 LACNIC Prefixes per ASN: 5.33 LACNIC Region origin ASes announcing only one prefix: 968 LACNIC Region transit ASes present in the Internet Routing Table: 521 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 31 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1968 Number of LACNIC addresses announced to Internet: 18285312 Equivalent to 1 /8s, 23 /16s and 3 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 1073 Total AfriNIC prefixes after maximum aggregation: 406 AfriNIC Deaggregation factor: 2.64 Prefixes being announced from the AfriNIC address blocks: 2678 Unique aggregates announced from the AfriNIC address blocks: 1493 AfriNIC Region origin ASes present in the Internet Routing Table: 104 AfriNIC Prefixes per ASN: 25.75 AfriNIC Region origin ASes announcing only one prefix: 39 AfriNIC Region transit ASes present in the Internet Routing Table: 28 Average AfriNIC Region AS path length visible: 5.7 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 53 Number of AfriNIC addresses announced to Internet: 6187776 Equivalent to 0 /8s, 94 /16s and 107 /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 9808 11636 8761 117 CHINAMOBILE-CN China Mobile Communication 9498 4377 502 304 BBIL-AP BHARTI Airtel Ltd., IN 24560 2905 863 520 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2684 812 179 CMNET-JIANGSU-AP China Mobile communicati 4766 1952 6031 919 KIXS-AS-KR Korea Telecom, KR 45609 1880 829 331 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56047 1629 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1615 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 9919 971 170 64 NCIC-TW New Century InfoComm Tech Co., Lt 24547 871 176 59 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 30036 2457 340 617 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2316 3753 1345 AMAZON-02, US 20115 2246 3099 511 CHARTER-20115, US 11492 1967 136 1060 CABLEONE, US 714 1247 4391 8 APPLE-ENGINEERING, US 8075 784 16023 661 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 556 192 88 WOW-INTERNET, US 2152 427 48 267 CENIC-2152, US 33363 380 1424 212 BHN-33363, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 4180 255 53 ALJAWWALSTC-AS, SA 12389 2985 2205 948 ROSTELECOM-AS PJSC Rostelecom. Technical 49505 956 100 407 SELECTEL, RU 25019 884 608 382 SAUDINETSTC-AS, SA 9123 678 42 306 TIMEWEB-AS, RU 50010 612 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 519 208 188 KAZTELECOM-AS, KZ 9155 430 37 9 QNET Kuwait, KW 21299 427 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 50340 380 39 242 SELECTEL-MSK, RU Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 2164 675 309 UNINET, MX 8167 342 1089 44 V tal, BR 7738 295 927 70 V tal, BR 1916 239 177 41 Rede Nacional de Ensino e Pesquisa, BR 28201 219 16 28 Companhia Itabirana Telecomunicacoes Ltda 28391 159 10 71 Universidad Juarez Autonoma de Tabasco, M 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 123 10 26 CPS, AR 11340 109 9 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 375 318 69 TENET-1, ZA 15399 76 7 28 WANANCHI-, KE 30999 74 25 32 EMTEL-AS-AP, MU 23889 55 37 31 MauritiusTelecom, MU 10798 54 3 36 SBICSA, ZA 8094 47 48 18 PUKNET, ZA 37215 37 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 328543 23 8 4 sun-asn, SC 37326 17 1 2 GICO, SO Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 11636 8761 117 CHINAMOBILE-CN China Mobile Communication 9498 4377 502 304 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 12389 2985 2205 948 ROSTELECOM-AS PJSC Rostelecom. Technical 24560 2905 863 520 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2684 812 179 CMNET-JIANGSU-AP China Mobile communicati 30036 2457 340 617 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2316 3753 1345 AMAZON-02, US 20115 2246 3099 511 CHARTER-20115, US 8151 2164 675 309 UNINET, MX Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 39891 4180 4127 ALJAWWALSTC-AS, SA 9498 4377 4073 BBIL-AP BHARTI Airtel Ltd., IN 56046 2684 2505 CMNET-JIANGSU-AP China Mobile communications co 24560 2905 2385 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 12389 2985 2037 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 8151 2164 1855 UNINET, MX 30036 2457 1840 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2246 1735 CHARTER-20115, US 56047 1629 1579 CMNET-HUNAN-AP China Mobile communications corp 45609 1880 1549 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 46123 UNALLOCATED 24.73.234.0/24 33363 BHN-33363, US 53771 UNALLOCATED 24.172.253.0/24 11426 TWC-11426-CAROLINAS, US 53657 UNALLOCATED 24.213.247.0/24 11351 TWC-11351-NORTHEAST, US 36928 UNALLOCATED 41.205.224.0/19 329109 ZL5-AS, SL 11835 UNALLOCATED 45.4.236.0/22 14868 Ligga Telecomunicacoes 269422 UNALLOCATED 45.186.100.0/22 263966 WORLD WIFI TELECOMUNICA 269422 UNALLOCATED 45.186.100.0/23 263966 WORLD WIFI TELECOMUNICA 269422 UNALLOCATED 45.186.102.0/23 263966 WORLD WIFI TELECOMUNICA 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 41.205.224.0/19 Origin: 36928 RESERVED, ZZ 41.205.224.0/19 Transit: 329109 ZL5-AS, SL 45.186.100.0/22 Origin: 269422 Gkg Net Telecon Eireli, ZZ 45.186.100.0/22 Transit: 263966 WORLD WIFI TELECOMUNICACOES LTDA - ME, B 45.186.100.0/23 Origin: 269422 Gkg Net Telecon Eireli, ZZ 45.186.100.0/23 Transit: 263966 WORLD WIFI TELECOMUNICACOES LTDA - ME, B 45.186.102.0/23 Origin: 269422 Gkg Net Telecon Eireli, ZZ 45.186.102.0/23 Transit: 263966 WORLD WIFI TELECOMUNICACOES LTDA - ME, B 103.5.136.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.5.136.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP Complete listing at https://bgp.nsrc.org/REN/PREGINET/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 /8:1 /9:2 /10:13 /11:13 /12:47 /13:80 /14:148 /15:384 /16:2320 /17:1289 /18:2616 /19:4447 /20:7750 /21:9222 /22:17033 /23:16192 /24:96588 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 39891 3321 4180 ALJAWWALSTC-AS, SA 30036 2140 2457 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1899 2985 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1356 1967 CABLEONE, US 8151 1230 2164 UNINET, MX 49505 669 956 SELECTEL, RU 9123 552 678 TIMEWEB-AS, RU 20115 550 2246 CHARTER-20115, US 50010 510 612 NAWRAS-AS Sultanate of Oman, OM 16509 504 2316 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:141 2:322 3:108 5:1136 8:80 12:73 13:95 14:285 15:59 16:62 17:335 18:75 20:28 23:817 24:594 25:2 27:481 31:567 32:2 34:3 35:51 36:2516 37:641 38:521 39:679 40:1 41:69 42:105 43:650 44:18 45:2374 46:775 47:55 49:197 50:335 51:136 52:257 54:62 57:28 58:252 59:537 60:100 61:775 62:575 63:128 64:368 65:180 66:316 67:294 68:68 69:258 70:38 71:77 72:226 74:221 75:66 76:63 77:497 78:460 79:245 80:243 81:306 82:401 83:191 84:199 85:474 86:127 87:332 88:104 89:471 90:136 91:1386 92:425 93:939 94:871 95:1525 96:278 97:146 98:74 99:45 101:470 102:111 103:7417 104:364 105:9 106:297 107:105 108:177 109:549 110:238 111:2177 112:1070 113:278 114:836 115:284 116:336 117:1238 118:308 119:221 120:1501 121:381 122:1723 123:389 124:315 125:1565 126:1 128:379 129:72 130:113 131:216 132:74 133:303 134:106 135:24 136:68 137:173 138:328 139:120 140:327 141:151 142:81 143:151 144:113 145:127 146:340 147:227 148:346 149:220 150:227 151:550 152:449 153:37 154:768 155:187 156:497 157:253 158:96 159:386 160:637 161:132 162:279 163:322 164:159 165:233 166:54 167:165 168:587 169:70 170:458 171:55 172:238 173:1003 174:125 175:577 176:733 177:518 178:699 179:175 180:402 181:171 182:1673 183:1260 184:138 185:2318 186:235 187:616 188:792 189:313 190:445 191:96 192:1776 193:1129 194:915 195:791 196:318 197:63 198:735 199:485 200:820 201:543 202:2342 203:1954 204:270 205:263 206:315 207:320 208:233 209:312 210:1368 211:1182 212:790 213:552 216:359 217:592 218:813 219:60 220:547 221:506 222:129 223:1407 End of report