IPv4 R&E Routing Table Report 20:30 GMT Tue 03 Jun, 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: 160825 Prefixes after maximum aggregation (per Origin AS): 63928 Deaggregation factor: 2.52 Unique aggregates announced (without unneeded subnets): 90704 Number of IPv4 prefixes with a valid ROA: 88760 Number of IPv4 prefixes with an invalid ROA: 74 Number of IPv4 prefixes with no ROA: 71991 Total ASes present in the Internet Routing Table: 14668 Prefixes per ASN: 10.96 Origin-only ASes present in the Internet Routing Table: 12402 Origin ASes announcing only one prefix: 6013 Transit ASes present in the Internet Routing Table: 2266 Transit-only ASes present in the Internet Routing Table: 492 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: 45 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 69 Number of instances of unregistered ASNs: 69 Number of 32-bit ASNs allocated by the RIRs: 46558 Number of 32-bit ASNs visible in the Routing Table: 7261 Prefixes from 32-bit ASNs in the Routing Table: 30155 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: 32 Number of addresses announced to Internet: 505243136 Equivalent to 30 /8s, 29 /16s and 102 /24s Percentage of available address space announced: 13.6 Percentage of allocated address space announced: 13.6 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: 39249 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 79274 Total APNIC prefixes after maximum aggregation: 25069 APNIC Deaggregation factor: 3.16 Prefixes being announced from the APNIC address blocks: 77493 Unique aggregates announced from the APNIC address blocks: 36579 APNIC Region origin ASes present in the Internet Routing Table: 4988 APNIC Prefixes per ASN: 15.54 APNIC Region origin ASes announcing only one prefix: 1849 APNIC Region transit ASes present in the Internet Routing Table: 756 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3192 Number of APNIC addresses announced to Internet: 188776192 Equivalent to 11 /8s, 64 /16s and 127 /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: 27176 Total ARIN prefixes after maximum aggregation: 14827 ARIN Deaggregation factor: 1.83 Prefixes being announced from the ARIN address blocks: 26772 Unique aggregates announced from the ARIN address blocks: 20766 ARIN Region origin ASes present in the Internet Routing Table: 2156 ARIN Prefixes per ASN: 12.42 ARIN Region origin ASes announcing only one prefix: 1014 ARIN Region transit ASes present in the Internet Routing Table: 221 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 480 Number of ARIN addresses announced to Internet: 167139584 Equivalent to 9 /8s, 246 /16s and 89 /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: 40215 Total RIPE prefixes after maximum aggregation: 19102 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 41037 Unique aggregates announced from the RIPE address blocks: 25879 RIPE Region origin ASes present in the Internet Routing Table: 4675 RIPE Prefixes per ASN: 8.78 RIPE Region origin ASes announcing only one prefix: 2171 RIPE Region transit ASes present in the Internet Routing Table: 668 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1666 Number of RIPE addresses announced to Internet: 125406208 Equivalent to 7 /8s, 121 /16s and 140 /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: 12500 Total LACNIC prefixes after maximum aggregation: 4502 LACNIC Deaggregation factor: 2.78 Prefixes being announced from the LACNIC address blocks: 11997 Unique aggregates announced from the LACNIC address blocks: 5774 LACNIC Region origin ASes present in the Internet Routing Table: 2239 LACNIC Prefixes per ASN: 5.36 LACNIC Region origin ASes announcing only one prefix: 939 LACNIC Region transit ASes present in the Internet Routing Table: 483 Average LACNIC Region AS path length visible: 7.5 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1872 Number of LACNIC addresses announced to Internet: 18020864 Equivalent to 1 /8s, 18 /16s and 250 /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: 1591 Total AfriNIC prefixes after maximum aggregation: 379 AfriNIC Deaggregation factor: 4.20 Prefixes being announced from the AfriNIC address blocks: 3494 Unique aggregates announced from the AfriNIC address blocks: 1679 AfriNIC Region origin ASes present in the Internet Routing Table: 99 AfriNIC Prefixes per ASN: 35.29 AfriNIC Region origin ASes announcing only one prefix: 40 AfriNIC Region transit ASes present in the Internet Routing Table: 33 Average AfriNIC Region AS path length visible: 7.4 Max AfriNIC Region AS path length visible: 29 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 51 Number of AfriNIC addresses announced to Internet: 5879040 Equivalent to 0 /8s, 89 /16s and 181 /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 10888 8756 96 CHINAMOBILE-CN China Mobile Communication 9498 4241 500 295 BBIL-AP BHARTI Airtel Ltd., IN 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 4766 1982 6032 921 KIXS-AS-KR Korea Telecom, KR 56046 1931 812 180 CMNET-JIANGSU-AP China Mobile communicati 45609 1853 826 324 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1638 728 86 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 9919 971 170 64 NCIC-TW New Century InfoComm Tech Co., Lt 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 2422 335 650 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2265 3647 1302 AMAZON-02, US 20115 2245 3096 513 CHARTER-20115, US 11492 1934 134 1045 CABLEONE, US 714 1239 4391 8 APPLE-ENGINEERING, US 8075 761 16021 643 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 581 192 88 WOW-INTERNET, US 2152 402 45 268 CENIC-2152, US 33363 388 1424 215 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 2313 1992 781 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 884 621 320 SAUDINETSTC-AS, SA 49505 860 92 356 SELECTEL, RU 9123 643 40 290 TIMEWEB-AS, RU 50010 618 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 487 191 179 KAZTELECOM-AS, KZ 9155 429 37 8 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 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 2087 692 280 UNINET, MX 7738 510 1527 64 V tal, BR 8167 342 1089 44 V tal, BR 1916 241 177 40 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 126 10 26 CPS, AR 11340 110 25 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 551 82 3 KENET-AS, KE 2018 374 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 15399 71 6 26 WANANCHI-, KE 23889 55 37 31 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37473 46 4 2 TELESOM, SO 10798 38 2 30 SBICSA, ZA 37215 36 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 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 10888 8756 96 CHINAMOBILE-CN China Mobile Communication 9498 4241 500 295 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2422 335 650 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2313 1992 781 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2265 3647 1302 AMAZON-02, US 20115 2245 3096 513 CHARTER-20115, US 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 8151 2087 692 280 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 4241 3946 BBIL-AP BHARTI Airtel Ltd., IN 24560 2878 2350 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 8151 2087 1807 UNINET, MX 30036 2422 1772 MEDIACOM-ENTERPRISE-BUSINESS, US 56046 1931 1751 CMNET-JIANGSU-AP China Mobile communications co 20115 2245 1732 CHARTER-20115, US 7552 2151 1694 VIETEL-AS-AP Viettel Group, VN 56041 1638 1552 CMNET-ZHEJIANG-AP China Mobile communications c 12389 2313 1532 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 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: 17476 CHL-AS-AP CloudRadium HK Limited, HK 103.12.68.0/24 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/24 Transit: 17476 CHL-AS-AP CloudRadium HK Limited, HK 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 /13:82 /14:162 /15:395 /16:2474 /17:1301 /18:2782 /19:4488 /20:7654 /21:9636 /22:17441 /23:16691 /24:97642 /25:1 /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 2105 2422 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1404 2313 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1326 1934 CABLEONE, US 8151 1141 2087 UNINET, MX 49505 597 860 SELECTEL, RU 20115 552 2245 CHARTER-20115, US 36914 527 551 KENET-AS, KE 9123 521 643 TIMEWEB-AS, RU 50010 516 618 NAWRAS-AS Sultanate of Oman, OM Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:160 2:322 3:105 5:1114 8:80 12:79 13:93 14:401 15:59 16:63 17:325 18:74 20:28 23:725 24:595 25:2 27:613 31:560 32:2 34:3 35:50 36:1939 37:637 38:548 39:695 40:1 41:247 42:115 43:673 44:21 45:2340 46:786 47:64 49:209 50:326 51:138 52:259 54:62 57:28 58:273 59:463 60:95 61:796 62:563 63:130 64:364 65:164 66:318 67:293 68:78 69:263 70:47 71:83 72:259 74:217 75:66 76:62 77:493 78:455 79:247 80:228 81:342 82:381 83:190 84:195 85:384 86:135 87:321 88:105 89:481 90:135 91:1388 92:458 93:955 94:782 95:1480 96:268 97:146 98:72 99:47 101:500 102:110 103:7925 104:374 105:9 106:293 107:109 108:175 109:454 110:224 111:2112 112:980 113:300 114:835 115:375 116:431 117:1380 118:348 119:241 120:1334 121:424 122:1728 123:394 124:351 125:1595 126:6 128:381 129:63 130:128 131:210 132:52 133:302 134:165 135:23 136:78 137:179 138:324 139:217 140:325 141:190 142:83 143:164 144:136 145:153 146:371 147:225 148:354 149:194 150:217 151:533 152:455 153:38 154:932 155:206 156:484 157:285 158:131 159:402 160:635 161:142 162:283 163:327 164:150 165:232 166:42 167:198 168:587 169:74 170:482 171:194 172:235 173:986 174:123 175:580 176:721 177:489 178:690 179:179 180:455 181:159 182:1638 183:1134 184:137 185:2301 186:214 187:541 188:592 189:312 190:477 191:100 192:1883 193:1120 194:924 195:780 196:314 197:373 198:775 199:526 200:790 201:538 202:2463 203:2192 204:288 205:267 206:316 207:327 208:246 209:317 210:1481 211:1151 212:767 213:533 214:1 216:358 217:541 218:811 219:61 220:564 221:410 222:132 223:1214 End of report