IPv4 R&E Routing Table Report 20:30 GMT Sun 13 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: 158954 Prefixes after maximum aggregation (per Origin AS): 62585 Deaggregation factor: 2.54 Unique aggregates announced (without unneeded subnets): 90063 Number of IPv4 prefixes with a valid ROA: 87546 Number of IPv4 prefixes with an invalid ROA: 62 Number of IPv4 prefixes with no ROA: 71346 Total ASes present in the Internet Routing Table: 14481 Prefixes per ASN: 10.98 Origin-only ASes present in the Internet Routing Table: 12198 Origin ASes announcing only one prefix: 5914 Transit ASes present in the Internet Routing Table: 2283 Transit-only ASes present in the Internet Routing Table: 540 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: 77 Number of instances of unregistered ASNs: 77 Number of 32-bit ASNs allocated by the RIRs: 46830 Number of 32-bit ASNs visible in the Routing Table: 7166 Prefixes from 32-bit ASNs in the Routing Table: 29198 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: 24 Number of addresses announced to Internet: 492116224 Equivalent to 29 /8s, 85 /16s and 25 /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: 40414 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 76645 Total APNIC prefixes after maximum aggregation: 23317 APNIC Deaggregation factor: 3.29 Prefixes being announced from the APNIC address blocks: 74918 Unique aggregates announced from the APNIC address blocks: 34387 APNIC Region origin ASes present in the Internet Routing Table: 4660 APNIC Prefixes per ASN: 16.08 APNIC Region origin ASes announcing only one prefix: 1720 APNIC Region transit ASes present in the Internet Routing Table: 719 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: 3017 Number of APNIC addresses announced to Internet: 181435904 Equivalent to 10 /8s, 208 /16s and 126 /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: 26572 Total ARIN prefixes after maximum aggregation: 14402 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26099 Unique aggregates announced from the ARIN address blocks: 20413 ARIN Region origin ASes present in the Internet Routing Table: 2090 ARIN Prefixes per ASN: 12.49 ARIN Region origin ASes announcing only one prefix: 996 ARIN Region transit ASes present in the Internet Routing Table: 215 Average ARIN Region AS path length visible: 5.1 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: 161420032 Equivalent to 9 /8s, 159 /16s and 19 /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: 41779 Total RIPE prefixes after maximum aggregation: 19658 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 42694 Unique aggregates announced from the RIPE address blocks: 26893 RIPE Region origin ASes present in the Internet Routing Table: 4802 RIPE Prefixes per ASN: 8.89 RIPE Region origin ASes announcing only one prefix: 2225 RIPE Region transit ASes present in the Internet Routing Table: 698 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: 1715 Number of RIPE addresses announced to Internet: 126105088 Equivalent to 7 /8s, 132 /16s and 54 /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: 12335 Total LACNIC prefixes after maximum aggregation: 4565 LACNIC Deaggregation factor: 2.70 Prefixes being announced from the LACNIC address blocks: 12020 Unique aggregates announced from the LACNIC address blocks: 6245 LACNIC Region origin ASes present in the Internet Routing Table: 2268 LACNIC Prefixes per ASN: 5.30 LACNIC Region origin ASes announcing only one prefix: 934 LACNIC Region transit ASes present in the Internet Routing Table: 508 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 27 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1906 Number of LACNIC addresses announced to Internet: 17863936 Equivalent to 1 /8s, 16 /16s and 149 /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: 1546 Total AfriNIC prefixes after maximum aggregation: 586 AfriNIC Deaggregation factor: 2.64 Prefixes being announced from the AfriNIC address blocks: 3199 Unique aggregates announced from the AfriNIC address blocks: 2102 AfriNIC Region origin ASes present in the Internet Routing Table: 97 AfriNIC Prefixes per ASN: 32.98 AfriNIC Region origin ASes announcing only one prefix: 39 AfriNIC Region transit ASes present in the Internet Routing Table: 25 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 17 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 50 Number of AfriNIC addresses announced to Internet: 5274368 Equivalent to 0 /8s, 80 /16s and 123 /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 11570 8761 117 CHINAMOBILE-CN China Mobile Communication 9498 4294 502 304 BBIL-AP BHARTI Airtel Ltd., IN 24560 2902 862 519 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2597 812 179 CMNET-JIANGSU-AP China Mobile communicati 4766 1952 6031 919 KIXS-AS-KR Korea Telecom, KR 45609 1879 829 330 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1615 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1501 192 50 CMNET-HUNAN-AP China Mobile communication 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 2452 339 618 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2308 3737 1334 AMAZON-02, US 20115 2246 3099 511 CHARTER-20115, US 11492 1961 136 1060 CABLEONE, US 714 1244 4391 8 APPLE-ENGINEERING, US 8075 778 16022 655 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1882 301 TWC-10796-MIDWEST, US 12083 558 192 88 WOW-INTERNET, US 2152 428 48 268 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 2984 2203 953 ROSTELECOM-AS PJSC Rostelecom. Technical 49505 956 100 407 SELECTEL, RU 25019 934 611 333 SAUDINETSTC-AS, SA 9123 678 42 306 TIMEWEB-AS, RU 50010 612 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 520 208 188 KAZTELECOM-AS, KZ 9155 429 37 9 QNET Kuwait, KW 21299 427 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 50340 379 39 241 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 1941 631 311 UNINET, MX 8167 342 1089 44 V tal, BR 7738 297 939 71 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 36914 559 57 215 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 327885 17 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 11570 8761 117 CHINAMOBILE-CN China Mobile Communication 9498 4294 502 304 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 12389 2984 2203 953 ROSTELECOM-AS PJSC Rostelecom. Technical 24560 2902 862 519 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2597 812 179 CMNET-JIANGSU-AP China Mobile communicati 30036 2452 339 618 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2308 3737 1334 AMAZON-02, US 20115 2246 3099 511 CHARTER-20115, US 11492 1961 136 1060 CABLEONE, US 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 4294 3990 BBIL-AP BHARTI Airtel Ltd., IN 56046 2597 2418 CMNET-JIANGSU-AP China Mobile communications co 24560 2902 2383 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 12389 2984 2031 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 30036 2452 1834 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2246 1735 CHARTER-20115, US 8151 1941 1630 UNINET, MX 45609 1879 1549 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 103.83.18.0/24 Origin: 133457 SSB-AS-AP ScopeTel Sdn Bhd, MY 103.83.18.0/24 Transit: 136400 ACG-AFG-AS-AP Asia Consultancy Group, AF 103.96.76.0/24 Origin: 132238 AHSL-AS-AP Array Health, NZ 103.96.76.0/24 Transit: 17981 CAMBOTECH-KH-AS Cambo TechnologyISP Co., 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 /15:384 /16:2319 /17:1290 /18:2615 /19:4410 /20:7747 /21:9188 /22:17094 /23:16200 /24:97404 /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 2135 2452 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1899 2984 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1351 1961 CABLEONE, US 8151 1113 1941 UNINET, MX 49505 669 956 SELECTEL, RU 9123 552 678 TIMEWEB-AS, RU 20115 550 2246 CHARTER-20115, US 36914 539 559 KENET-AS, KE 50010 510 612 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) ---------------------------------------------- 1:141 2:321 3:108 5:1139 8:81 12:74 13:95 14:376 15:59 16:62 17:329 18:75 23:811 24:594 25:2 27:473 31:567 32:2 34:3 35:51 36:2428 37:658 38:574 39:677 40:1 41:244 42:104 43:671 44:18 45:2391 46:800 47:60 49:210 50:334 51:136 52:256 54:62 57:28 58:252 59:455 60:109 61:780 62:589 63:128 64:370 65:181 66:320 67:295 68:72 69:260 70:36 71:77 72:225 74:218 75:65 76:62 77:503 78:480 79:260 80:232 81:344 82:401 83:187 84:202 85:481 86:128 87:336 88:109 89:467 90:136 91:1389 92:477 93:948 94:916 95:1546 96:272 97:146 98:73 99:45 101:468 102:112 103:7589 104:365 105:9 106:297 107:103 108:176 109:553 110:237 111:2147 112:1057 113:278 114:749 115:282 116:343 117:1220 118:320 119:230 120:1482 121:385 122:1718 123:408 124:320 125:1565 126:4 128:379 129:72 130:110 131:210 132:74 133:303 134:103 135:24 136:76 137:173 138:342 139:121 140:327 141:150 142:80 143:152 144:135 145:148 146:341 147:228 148:354 149:174 150:228 151:547 152:454 153:37 154:811 155:187 156:524 157:251 158:121 159:386 160:640 161:142 162:279 163:322 164:169 165:223 166:58 167:166 168:578 169:70 170:465 171:55 172:240 173:1002 174:125 175:579 176:739 177:503 178:720 179:158 180:405 181:153 182:1682 183:1208 184:141 185:2402 186:233 187:575 188:796 189:279 190:457 191:92 192:1774 193:1141 194:924 195:771 196:324 197:386 198:732 199:477 200:802 201:531 202:2384 203:1912 204:270 205:268 206:321 207:326 208:233 209:312 210:1362 211:1176 212:797 213:555 216:356 217:587 218:810 219:63 220:551 221:499 222:130 223:1348 End of report