IPv4 R&E Routing Table Report 20:30 GMT Mon 26 May, 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: 159952 Prefixes after maximum aggregation (per Origin AS): 63322 Deaggregation factor: 2.53 Unique aggregates announced (without unneeded subnets): 90228 Number of IPv4 prefixes with a valid ROA: 88068 Number of IPv4 prefixes with an invalid ROA: 79 Number of IPv4 prefixes with no ROA: 71805 Total ASes present in the Internet Routing Table: 14726 Prefixes per ASN: 10.86 Origin-only ASes present in the Internet Routing Table: 12451 Origin ASes announcing only one prefix: 6038 Transit ASes present in the Internet Routing Table: 2275 Transit-only ASes present in the Internet Routing Table: 519 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: 70 Number of instances of unregistered ASNs: 70 Number of 32-bit ASNs allocated by the RIRs: 46520 Number of 32-bit ASNs visible in the Routing Table: 7311 Prefixes from 32-bit ASNs in the Routing Table: 29657 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: 42 Number of addresses announced to Internet: 505190912 Equivalent to 30 /8s, 28 /16s and 154 /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: 39044 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78879 Total APNIC prefixes after maximum aggregation: 25105 APNIC Deaggregation factor: 3.14 Prefixes being announced from the APNIC address blocks: 77200 Unique aggregates announced from the APNIC address blocks: 36763 APNIC Region origin ASes present in the Internet Routing Table: 5041 APNIC Prefixes per ASN: 15.31 APNIC Region origin ASes announcing only one prefix: 1872 APNIC Region transit ASes present in the Internet Routing Table: 748 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: 3248 Number of APNIC addresses announced to Internet: 188427520 Equivalent to 11 /8s, 59 /16s and 45 /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: 27167 Total ARIN prefixes after maximum aggregation: 14742 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26638 Unique aggregates announced from the ARIN address blocks: 20628 ARIN Region origin ASes present in the Internet Routing Table: 2134 ARIN Prefixes per ASN: 12.48 ARIN Region origin ASes announcing only one prefix: 1002 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: 474 Number of ARIN addresses announced to Internet: 166896384 Equivalent to 9 /8s, 242 /16s and 163 /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: 39850 Total RIPE prefixes after maximum aggregation: 18591 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 40696 Unique aggregates announced from the RIPE address blocks: 25414 RIPE Region origin ASes present in the Internet Routing Table: 4629 RIPE Prefixes per ASN: 8.79 RIPE Region origin ASes announcing only one prefix: 2148 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: 1625 Number of RIPE addresses announced to Internet: 125613568 Equivalent to 7 /8s, 124 /16s and 182 /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: 12446 Total LACNIC prefixes after maximum aggregation: 4457 LACNIC Deaggregation factor: 2.79 Prefixes being announced from the LACNIC address blocks: 11939 Unique aggregates announced from the LACNIC address blocks: 5737 LACNIC Region origin ASes present in the Internet Routing Table: 2281 LACNIC Prefixes per ASN: 5.23 LACNIC Region origin ASes announcing only one prefix: 975 LACNIC Region transit ASes present in the Internet Routing Table: 501 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1912 Number of LACNIC addresses announced to Internet: 18223104 Equivalent to 1 /8s, 22 /16s and 16 /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: 1540 Total AfriNIC prefixes after maximum aggregation: 377 AfriNIC Deaggregation factor: 4.08 Prefixes being announced from the AfriNIC address blocks: 3437 Unique aggregates announced from the AfriNIC address blocks: 1653 AfriNIC Region origin ASes present in the Internet Routing Table: 102 AfriNIC Prefixes per ASN: 33.70 AfriNIC Region origin ASes announcing only one prefix: 41 AfriNIC Region transit ASes present in the Internet Routing Table: 32 Average AfriNIC Region AS path length visible: 7.2 Max AfriNIC Region AS path length visible: 44 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 52 Number of AfriNIC addresses announced to Internet: 6003968 Equivalent to 0 /8s, 91 /16s and 157 /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 10849 8755 97 CHINAMOBILE-CN China Mobile Communication 9498 4223 500 290 BBIL-AP BHARTI Airtel Ltd., IN 24560 2868 853 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2139 1066 462 VIETEL-AS-AP Viettel Group, VN 4766 1982 6032 921 KIXS-AS-KR Korea Telecom, KR 56046 1855 812 180 CMNET-JIANGSU-AP China Mobile communicati 45609 1849 824 323 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1591 726 76 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 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 2419 335 660 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2240 3629 1284 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 11492 1933 134 1044 CABLEONE, US 714 1241 4391 8 APPLE-ENGINEERING, US 8075 758 16021 640 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 581 192 88 WOW-INTERNET, US 2152 403 46 269 CENIC-2152, US 33363 387 1424 214 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 2311 1999 782 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 919 639 339 SAUDINETSTC-AS, SA 49505 861 92 357 SELECTEL, RU 9123 637 40 285 TIMEWEB-AS, RU 50010 617 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 483 188 175 KAZTELECOM-AS, KZ 9155 428 37 9 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 42772 373 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 2023 686 270 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 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 262287 87 12 73 Latitude.sh LTDA, 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 552 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 15399 71 6 26 WANANCHI-, KE 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 36 8 1 MAREN, MW 10798 29 2 23 SBICSA, ZA 6879 24 2 9 ENSTINET-, EG 327885 21 4 3 Viettel-Tanzania, TZ 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 10849 8755 97 CHINAMOBILE-CN China Mobile Communication 9498 4223 500 290 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 24560 2868 853 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2419 335 660 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2311 1999 782 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2240 3629 1284 AMAZON-02, US 20115 2235 3096 513 CHARTER-20115, US 7552 2139 1066 462 VIETEL-AS-AP Viettel Group, VN 8151 2023 686 270 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 4223 3933 BBIL-AP BHARTI Airtel Ltd., IN 24560 2868 2333 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 30036 2419 1759 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 2023 1753 UNINET, MX 20115 2235 1722 CHARTER-20115, US 7552 2139 1677 VIETEL-AS-AP Viettel Group, VN 56046 1855 1675 CMNET-JIANGSU-AP China Mobile communications co 12389 2311 1529 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 45609 1849 1526 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 202528 UNALLOCATED 23.143.136.0/24 153371 BACKWAVESLIMITED-AS-AP 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 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 /16:2468 /17:1310 /18:2761 /19:4440 /20:7723 /21:9566 /22:17380 /23:16605 /24:96983 /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 2102 2419 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1404 2311 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1325 1933 CABLEONE, US 8151 1111 2023 UNINET, MX 49505 597 861 SELECTEL, RU 20115 552 2235 CHARTER-20115, US 36914 528 552 KENET-AS, KE 9123 517 637 TIMEWEB-AS, RU 50010 515 617 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) ---------------------------------------------- 1:163 2:325 3:105 5:1101 8:79 12:79 13:90 14:393 15:58 16:63 17:325 18:74 20:28 23:714 24:594 25:2 27:610 31:532 32:2 34:3 35:37 36:1889 37:630 38:524 39:694 40:1 41:248 42:115 43:671 44:22 45:2335 46:789 47:64 49:210 50:319 51:138 52:259 54:62 57:28 58:261 59:458 60:95 61:782 62:552 63:129 64:348 65:283 66:299 67:296 68:78 69:265 70:48 71:82 72:246 74:208 75:65 76:62 77:488 78:460 79:240 80:225 81:344 82:360 83:184 84:185 85:374 86:115 87:312 88:98 89:476 90:135 91:1403 92:454 93:942 94:786 95:1474 96:266 97:146 98:68 99:47 101:484 102:105 103:7990 104:370 105:9 106:291 107:109 108:150 109:462 110:227 111:2109 112:974 113:300 114:834 115:382 116:426 117:1380 118:345 119:221 120:1315 121:427 122:1726 123:392 124:329 125:1586 126:6 128:382 129:64 130:127 131:212 132:51 133:302 134:163 135:24 136:78 137:166 138:335 139:221 140:324 141:194 142:81 143:167 144:129 145:137 146:374 147:228 148:194 149:178 150:223 151:522 152:453 153:37 154:902 155:196 156:471 157:287 158:128 159:396 160:645 161:144 162:273 163:312 164:144 165:225 166:45 167:192 168:600 169:69 170:492 171:192 172:232 173:977 174:121 175:570 176:724 177:530 178:686 179:199 180:468 181:128 182:1621 183:1113 184:139 185:2248 186:219 187:520 188:598 189:306 190:490 191:95 192:1857 193:1123 194:910 195:777 196:308 197:373 198:772 199:554 200:793 201:553 202:2499 203:2221 204:286 205:260 206:317 207:320 208:244 209:315 210:1479 211:1148 212:758 213:515 216:347 217:554 218:807 219:60 220:569 221:400 222:148 223:1190 End of report