IPv4 R&E Routing Table Report 20:30 GMT Thu 04 Sep, 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: 164858 Prefixes after maximum aggregation (per Origin AS): 62751 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 90726 Number of IPv4 prefixes with a valid ROA: 91569 Number of IPv4 prefixes with an invalid ROA: 66 Number of IPv4 prefixes with no ROA: 73223 Total ASes present in the Internet Routing Table: 14363 Prefixes per ASN: 11.48 Origin-only ASes present in the Internet Routing Table: 12118 Origin ASes announcing only one prefix: 5860 Transit ASes present in the Internet Routing Table: 2245 Transit-only ASes present in the Internet Routing Table: 557 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: 84 Number of instances of unregistered ASNs: 84 Number of 32-bit ASNs allocated by the RIRs: 47315 Number of 32-bit ASNs visible in the Routing Table: 7066 Prefixes from 32-bit ASNs in the Routing Table: 29768 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: 38 Number of addresses announced to Internet: 481530624 Equivalent to 28 /8s, 179 /16s and 147 /24s Percentage of available address space announced: 13.0 Percentage of allocated address space announced: 13.0 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: 40666 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 83235 Total APNIC prefixes after maximum aggregation: 24042 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 81454 Unique aggregates announced from the APNIC address blocks: 35564 APNIC Region origin ASes present in the Internet Routing Table: 4788 APNIC Prefixes per ASN: 17.01 APNIC Region origin ASes announcing only one prefix: 1745 APNIC Region transit ASes present in the Internet Routing Table: 727 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: 3131 Number of APNIC addresses announced to Internet: 185094656 Equivalent to 11 /8s, 8 /16s and 82 /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: 26474 Total ARIN prefixes after maximum aggregation: 14325 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26049 Unique aggregates announced from the ARIN address blocks: 21031 ARIN Region origin ASes present in the Internet Routing Table: 2107 ARIN Prefixes per ASN: 12.36 ARIN Region origin ASes announcing only one prefix: 1006 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: 42 Number of ARIN region 32-bit ASNs visible in the Routing Table: 486 Number of ARIN addresses announced to Internet: 149311232 Equivalent to 8 /8s, 230 /16s and 79 /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: 41836 Total RIPE prefixes after maximum aggregation: 19925 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 42875 Unique aggregates announced from the RIPE address blocks: 26956 RIPE Region origin ASes present in the Internet Routing Table: 4819 RIPE Prefixes per ASN: 8.90 RIPE Region origin ASes announcing only one prefix: 2249 RIPE Region transit ASes present in the Internet Routing Table: 701 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: 1736 Number of RIPE addresses announced to Internet: 124338176 Equivalent to 7 /8s, 105 /16s and 64 /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: 11690 Total LACNIC prefixes after maximum aggregation: 4031 LACNIC Deaggregation factor: 2.90 Prefixes being announced from the LACNIC address blocks: 11338 Unique aggregates announced from the LACNIC address blocks: 5442 LACNIC Region origin ASes present in the Internet Routing Table: 1957 LACNIC Prefixes per ASN: 5.79 LACNIC Region origin ASes announcing only one prefix: 813 LACNIC Region transit ASes present in the Internet Routing Table: 450 Average LACNIC Region AS path length visible: 7.1 Max LACNIC Region AS path length visible: 31 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1655 Number of LACNIC addresses announced to Internet: 17597696 Equivalent to 1 /8s, 12 /16s and 133 /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: 1539 Total AfriNIC prefixes after maximum aggregation: 370 AfriNIC Deaggregation factor: 4.16 Prefixes being announced from the AfriNIC address blocks: 3104 Unique aggregates announced from the AfriNIC address blocks: 1699 AfriNIC Region origin ASes present in the Internet Routing Table: 109 AfriNIC Prefixes per ASN: 28.48 AfriNIC Region origin ASes announcing only one prefix: 47 AfriNIC Region transit ASes present in the Internet Routing Table: 34 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 58 Number of AfriNIC addresses announced to Internet: 5169664 Equivalent to 0 /8s, 78 /16s and 226 /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 12726 8729 116 CHINAMOBILE-CN China Mobile Communication 9498 4401 502 303 BBIL-AP BHARTI Airtel Ltd., IN 7552 3081 1177 271 VIETEL-AS-AP Viettel Group, VN 56046 2923 812 179 CMNET-JIANGSU-AP China Mobile communicati 24560 2914 864 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45609 1956 844 345 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 4766 1955 6030 939 KIXS-AS-KR Korea Telecom, KR 56047 1690 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1678 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 9919 974 170 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 2511 348 617 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2393 3799 1413 AMAZON-02, US 20115 2240 3097 521 CHARTER-20115, US 11492 1905 132 1051 CABLEONE, US 714 1251 4391 8 APPLE-ENGINEERING, US 8075 815 16025 680 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 635 1879 297 TWC-10796-MIDWEST, US 12083 553 192 88 WOW-INTERNET, US 2152 448 50 280 CENIC-2152, US 33363 381 1424 213 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 2983 2201 946 ROSTELECOM-AS PJSC Rostelecom. Technical 49505 949 102 399 SELECTEL, RU 25019 879 608 382 SAUDINETSTC-AS, SA 9123 685 43 309 TIMEWEB-AS, RU 9198 516 198 228 KAZTELECOM-AS, KZ 50010 498 72 10 NAWRAS-AS Sultanate of Oman, OM 5416 430 30 9 Internet Service Provider, BH 9155 429 37 9 QNET Kuwait, KW 21299 428 77 62 KAR-TEL-AS Almaty, Republic of Kazakhstan 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 2456 709 243 UNINET, MX 8167 342 1089 44 V tal, BR 7738 295 927 70 V tal, BR 28201 219 16 28 Companhia Itabirana Telecomunicacoes Ltda 1916 205 177 41 Rede Nacional de Ensino e Pesquisa, BR 28391 159 10 71 Universidad Juarez Autonoma de Tabasco, M 262287 141 24 123 Latitude.sh LTDA, BR 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11340 110 9 50 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 82 3 KENET-AS, KE 2018 375 318 69 TENET-1, ZA 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 38 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 327885 23 4 3 Viettel-Tanzania, TZ 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 12726 8729 116 CHINAMOBILE-CN China Mobile Communication 9498 4401 502 303 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 7552 3081 1177 271 VIETEL-AS-AP Viettel Group, VN 12389 2983 2201 946 ROSTELECOM-AS PJSC Rostelecom. Technical 56046 2923 812 179 CMNET-JIANGSU-AP China Mobile communicati 24560 2914 864 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2511 348 617 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 2456 709 243 UNINET, MX 16509 2393 3799 1413 AMAZON-02, 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 4401 4098 BBIL-AP BHARTI Airtel Ltd., IN 7552 3081 2810 VIETEL-AS-AP Viettel Group, VN 56046 2923 2744 CMNET-JIANGSU-AP China Mobile communications co 24560 2914 2410 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 8151 2456 2213 UNINET, MX 12389 2983 2037 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 30036 2511 1894 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2240 1719 CHARTER-20115, US 56047 1690 1640 CMNET-HUNAN-AP China Mobile communications corp 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 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 395888 UNALLOCATED 71.92.235.0/24 33588 BRESNAN-33588, 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 /10:12 /11:11 /12:45 /13:78 /14:151 /15:378 /16:2341 /17:1278 /18:2657 /19:4507 /20:7709 /21:10520 /22:17079 /23:16673 /24:101416 /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 2192 2511 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1903 2983 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 8151 1353 2456 UNINET, MX 11492 1313 1905 CABLEONE, US 49505 665 949 SELECTEL, RU 9123 559 685 TIMEWEB-AS, RU 20115 547 2240 CHARTER-20115, US 36914 546 570 KENET-AS, KE 16509 515 2393 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:242 2:308 3:122 5:1134 8:77 12:76 13:99 14:450 15:60 16:61 17:335 18:78 20:28 23:641 24:592 25:2 27:606 31:565 32:2 34:3 35:55 36:3200 37:625 38:539 39:750 40:2 41:255 42:117 43:695 44:19 45:2297 46:827 47:66 49:213 50:344 51:136 52:255 54:61 57:23 58:246 59:556 60:102 61:792 62:586 63:130 64:402 65:174 66:362 67:329 68:67 69:267 70:40 71:78 72:248 74:228 75:66 76:62 77:529 78:458 79:250 80:225 81:349 82:390 83:211 84:200 85:487 86:137 87:339 88:146 89:508 90:141 91:1436 92:457 93:977 94:869 95:1516 96:267 97:146 98:71 99:45 101:507 102:102 103:7893 104:340 105:9 106:291 107:146 108:176 109:540 110:260 111:2484 112:1310 113:295 114:884 115:296 116:405 117:1451 118:290 119:236 120:1569 121:377 122:1921 123:609 124:327 125:1632 126:6 128:386 129:70 130:106 131:179 132:66 133:312 134:115 135:35 136:85 137:182 138:291 139:131 140:311 141:161 142:80 143:151 144:133 145:138 146:366 147:243 148:360 149:227 150:226 151:586 152:461 153:46 154:772 155:218 156:558 157:266 158:131 159:390 160:642 161:158 162:278 163:357 164:158 165:284 166:55 167:145 168:288 169:68 170:454 171:227 172:182 173:1008 174:112 175:513 176:765 177:447 178:739 179:166 180:448 181:146 182:1648 183:1417 184:103 185:2413 186:205 187:632 188:748 189:336 190:383 191:86 192:1754 193:1166 194:977 195:827 196:305 197:403 198:751 199:499 200:796 201:584 202:2429 203:1894 204:274 205:264 206:315 207:351 208:239 209:323 210:1364 211:1211 212:859 213:516 216:411 217:584 218:861 219:51 220:583 221:523 222:130 223:1574 End of report