IPv4 R&E Routing Table Report 20:30 GMT Mon 07 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: 157686 Prefixes after maximum aggregation (per Origin AS): 62304 Deaggregation factor: 2.53 Unique aggregates announced (without unneeded subnets): 89397 Number of IPv4 prefixes with a valid ROA: 86582 Number of IPv4 prefixes with an invalid ROA: 70 Number of IPv4 prefixes with no ROA: 71034 Total ASes present in the Internet Routing Table: 14465 Prefixes per ASN: 10.90 Origin-only ASes present in the Internet Routing Table: 12199 Origin ASes announcing only one prefix: 5912 Transit ASes present in the Internet Routing Table: 2266 Transit-only ASes present in the Internet Routing Table: 539 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: 46782 Number of 32-bit ASNs visible in the Routing Table: 7150 Prefixes from 32-bit ASNs in the Routing Table: 29694 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: 28 Number of addresses announced to Internet: 490856192 Equivalent to 29 /8s, 65 /16s and 223 /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: 39731 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 76342 Total APNIC prefixes after maximum aggregation: 23446 APNIC Deaggregation factor: 3.26 Prefixes being announced from the APNIC address blocks: 74543 Unique aggregates announced from the APNIC address blocks: 34559 APNIC Region origin ASes present in the Internet Routing Table: 4676 APNIC Prefixes per ASN: 15.94 APNIC Region origin ASes announcing only one prefix: 1717 APNIC Region transit ASes present in the Internet Routing Table: 719 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3030 Number of APNIC addresses announced to Internet: 180339200 Equivalent to 10 /8s, 191 /16s and 194 /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: 26642 Total ARIN prefixes after maximum aggregation: 14457 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26183 Unique aggregates announced from the ARIN address blocks: 20436 ARIN Region origin ASes present in the Internet Routing Table: 2086 ARIN Prefixes per ASN: 12.55 ARIN Region origin ASes announcing only one prefix: 992 ARIN Region transit ASes present in the Internet Routing Table: 215 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: 478 Number of ARIN addresses announced to Internet: 161259776 Equivalent to 9 /8s, 156 /16s and 161 /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: 40683 Total RIPE prefixes after maximum aggregation: 19288 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 41581 Unique aggregates announced from the RIPE address blocks: 26381 RIPE Region origin ASes present in the Internet Routing Table: 4821 RIPE Prefixes per ASN: 8.62 RIPE Region origin ASes announcing only one prefix: 2241 RIPE Region transit ASes present in the Internet Routing Table: 703 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: 1724 Number of RIPE addresses announced to Internet: 126063872 Equivalent to 7 /8s, 131 /16s and 149 /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: 12370 Total LACNIC prefixes after maximum aggregation: 4484 LACNIC Deaggregation factor: 2.76 Prefixes being announced from the LACNIC address blocks: 12063 Unique aggregates announced from the LACNIC address blocks: 5875 LACNIC Region origin ASes present in the Internet Routing Table: 2221 LACNIC Prefixes per ASN: 5.43 LACNIC Region origin ASes announcing only one prefix: 924 LACNIC Region transit ASes present in the Internet Routing Table: 490 Average LACNIC Region AS path length visible: 7.3 Max LACNIC Region AS path length visible: 25 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1866 Number of LACNIC addresses announced to Internet: 17874176 Equivalent to 1 /8s, 16 /16s and 189 /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: 1569 Total AfriNIC prefixes after maximum aggregation: 575 AfriNIC Deaggregation factor: 2.73 Prefixes being announced from the AfriNIC address blocks: 3288 Unique aggregates announced from the AfriNIC address blocks: 2123 AfriNIC Region origin ASes present in the Internet Routing Table: 98 AfriNIC Prefixes per ASN: 33.55 AfriNIC Region origin ASes announcing only one prefix: 38 AfriNIC Region transit ASes present in the Internet Routing Table: 26 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 52 Number of AfriNIC addresses announced to Internet: 5301504 Equivalent to 0 /8s, 80 /16s and 229 /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 11378 8759 115 CHINAMOBILE-CN China Mobile Communication 9498 4291 502 304 BBIL-AP BHARTI Airtel Ltd., IN 24560 2899 862 526 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2373 812 180 CMNET-JIANGSU-AP China Mobile communicati 4766 1951 6031 918 KIXS-AS-KR Korea Telecom, KR 45609 1877 829 329 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1615 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication 9919 969 170 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 2450 339 617 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2306 3713 1327 AMAZON-02, US 20115 2245 3099 510 CHARTER-20115, US 11492 1955 135 1055 CABLEONE, US 714 1247 4391 8 APPLE-ENGINEERING, US 8075 777 16022 656 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1882 301 TWC-10796-MIDWEST, US 12083 565 192 88 WOW-INTERNET, US 2152 428 48 268 CENIC-2152, US 33363 381 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 2984 2190 961 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 890 623 335 SAUDINETSTC-AS, SA 9123 678 42 306 TIMEWEB-AS, RU 50010 614 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 520 208 188 KAZTELECOM-AS, KZ 9155 428 37 9 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 50340 378 38 240 SELECTEL-MSK, RU 42772 374 63 104 A1-BY-AS, BY 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 2124 668 311 UNINET, MX 8167 342 1089 44 V tal, BR 7738 297 939 71 V tal, BR 1916 240 177 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 36914 570 58 201 KENET-AS, KE 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 328543 23 8 4 sun-asn, SC 37501 11 49 6 UOFS, ZA 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 11378 8759 115 CHINAMOBILE-CN China Mobile Communication 9498 4291 502 304 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 12389 2984 2190 961 ROSTELECOM-AS PJSC Rostelecom. Technical 24560 2899 862 526 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2450 339 617 MEDIACOM-ENTERPRISE-BUSINESS, US 56046 2373 812 180 CMNET-JIANGSU-AP China Mobile communicati 16509 2306 3713 1327 AMAZON-02, US 20115 2245 3099 510 CHARTER-20115, US 8151 2124 668 311 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 4291 3987 BBIL-AP BHARTI Airtel Ltd., IN 24560 2899 2373 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 56046 2373 2193 CMNET-JIANGSU-AP China Mobile communications co 12389 2984 2023 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 30036 2450 1833 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 2124 1813 UNINET, MX 20115 2245 1735 CHARTER-20115, US 45609 1877 1548 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56041 1615 1541 CMNET-ZHEJIANG-AP China Mobile communications c 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 11835 UNALLOCATED 45.4.236.0/22 14868 Ligga Telecomunicacoes 268652 UNALLOCATED 45.165.20.0/22 264493 UNASSIGNED 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US 396324 UNALLOCATED 66.57.112.0/24 11426 TWC-11426-CAROLINAS, US 26345 UNALLOCATED 71.13.182.0/24 20115 CHARTER-20115, US 46123 UNALLOCATED 71.46.221.0/24 33363 BHN-33363, 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 103.5.136.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.5.136.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.6.224.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.6.224.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.8.106.0/24 Origin: 135391 AOFEI-HK AOFEI DATA INTERNATIONAL COMPAN 103.8.106.0/24 Transit: 55888 NINTATSU Nintatsu Global Telecommunicati 103.12.68.0/22 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/22 Transit: 2914 NTT-DATA-2914, US 103.12.68.0/24 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/24 Transit: 2914 NTT-DATA-2914, US 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 /12:46 /13:80 /14:148 /15:388 /16:2303 /17:1278 /18:2579 /19:4400 /20:7722 /21:9077 /22:16825 /23:16095 /24:96716 /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 2133 2450 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1898 2984 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1347 1955 CABLEONE, US 8151 1209 2124 UNINET, MX 9123 552 678 TIMEWEB-AS, RU 36914 550 570 KENET-AS, KE 20115 549 2245 CHARTER-20115, US 50010 512 614 NAWRAS-AS Sultanate of Oman, OM 16509 498 2306 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:163 2:319 3:108 5:1112 8:81 12:74 13:95 14:400 15:59 16:62 17:332 18:75 20:28 23:819 24:596 25:2 27:517 31:553 32:2 34:3 35:51 36:2180 37:650 38:559 39:677 40:1 41:255 42:105 43:692 44:20 45:2305 46:754 47:60 49:194 50:326 51:136 52:257 54:62 57:28 58:273 59:455 60:101 61:777 62:583 63:128 64:370 65:180 66:320 67:294 68:70 69:259 70:51 71:76 72:248 74:218 75:66 76:62 77:490 78:486 79:259 80:226 81:351 82:374 83:187 84:202 85:414 86:130 87:334 88:109 89:483 90:136 91:1362 92:455 93:947 94:858 95:1470 96:274 97:145 98:73 99:47 101:466 102:116 103:7682 104:380 105:9 106:288 107:102 108:175 109:539 110:238 111:2135 112:1042 113:276 114:749 115:293 116:348 117:1240 118:346 119:224 120:1461 121:424 122:1725 123:390 124:315 125:1564 126:4 128:379 129:68 130:115 131:212 132:73 133:303 134:144 135:23 136:77 137:181 138:333 139:121 140:327 141:153 142:82 143:182 144:125 145:147 146:339 147:229 148:356 149:174 150:228 151:544 152:454 153:37 154:844 155:186 156:493 157:259 158:125 159:386 160:635 161:142 162:279 163:329 164:176 165:220 166:53 167:164 168:567 169:71 170:455 171:55 172:249 173:1004 174:126 175:572 176:714 177:539 178:711 179:156 180:396 181:155 182:1674 183:1181 184:141 185:2371 186:240 187:573 188:605 189:303 190:454 191:95 192:1755 193:1117 194:886 195:748 196:317 197:390 198:735 199:476 200:803 201:539 202:2426 203:1940 204:272 205:267 206:320 207:328 208:236 209:313 210:1373 211:1163 212:780 213:557 216:354 217:580 218:810 219:64 220:551 221:465 222:132 223:1329 End of report