IPv4 R&E Routing Table Report 20:30 GMT Mon 28 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: 157982 Prefixes after maximum aggregation (per Origin AS): 61542 Deaggregation factor: 2.57 Unique aggregates announced (without unneeded subnets): 88265 Number of IPv4 prefixes with a valid ROA: 86131 Number of IPv4 prefixes with an invalid ROA: 81 Number of IPv4 prefixes with no ROA: 71770 Total ASes present in the Internet Routing Table: 14174 Prefixes per ASN: 11.15 Origin-only ASes present in the Internet Routing Table: 11988 Origin ASes announcing only one prefix: 5835 Transit ASes present in the Internet Routing Table: 2186 Transit-only ASes present in the Internet Routing Table: 513 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: 87 Number of instances of unregistered ASNs: 87 Number of 32-bit ASNs allocated by the RIRs: 46959 Number of 32-bit ASNs visible in the Routing Table: 6924 Prefixes from 32-bit ASNs in the Routing Table: 28404 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: 34 Number of addresses announced to Internet: 478661120 Equivalent to 28 /8s, 135 /16s and 202 /24s Percentage of available address space announced: 12.9 Percentage of allocated address space announced: 12.9 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: 39900 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 77281 Total APNIC prefixes after maximum aggregation: 23144 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 75837 Unique aggregates announced from the APNIC address blocks: 34174 APNIC Region origin ASes present in the Internet Routing Table: 4663 APNIC Prefixes per ASN: 16.26 APNIC Region origin ASes announcing only one prefix: 1725 APNIC Region transit ASes present in the Internet Routing Table: 710 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3016 Number of APNIC addresses announced to Internet: 182030336 Equivalent to 10 /8s, 217 /16s and 144 /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: 26267 Total ARIN prefixes after maximum aggregation: 14227 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 25365 Unique aggregates announced from the ARIN address blocks: 20572 ARIN Region origin ASes present in the Internet Routing Table: 2086 ARIN Prefixes per ASN: 12.16 ARIN Region origin ASes announcing only one prefix: 1001 ARIN Region transit ASes present in the Internet Routing Table: 217 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: 479 Number of ARIN addresses announced to Internet: 148082432 Equivalent to 8 /8s, 211 /16s and 143 /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: 40964 Total RIPE prefixes after maximum aggregation: 19482 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 42148 Unique aggregates announced from the RIPE address blocks: 26460 RIPE Region origin ASes present in the Internet Routing Table: 4766 RIPE Prefixes per ASN: 8.84 RIPE Region origin ASes announcing only one prefix: 2213 RIPE Region transit ASes present in the Internet Routing Table: 693 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: 1716 Number of RIPE addresses announced to Internet: 125269248 Equivalent to 7 /8s, 119 /16s and 117 /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: 11759 Total LACNIC prefixes after maximum aggregation: 4238 LACNIC Deaggregation factor: 2.77 Prefixes being announced from the LACNIC address blocks: 11408 Unique aggregates announced from the LACNIC address blocks: 5571 LACNIC Region origin ASes present in the Internet Routing Table: 2016 LACNIC Prefixes per ASN: 5.66 LACNIC Region origin ASes announcing only one prefix: 854 LACNIC Region transit ASes present in the Internet Routing Table: 436 Average LACNIC Region AS path length visible: 7.1 Max LACNIC Region AS path length visible: 24 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1663 Number of LACNIC addresses announced to Internet: 17757952 Equivalent to 1 /8s, 14 /16s and 247 /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: 1624 Total AfriNIC prefixes after maximum aggregation: 390 AfriNIC Deaggregation factor: 4.16 Prefixes being announced from the AfriNIC address blocks: 3190 Unique aggregates announced from the AfriNIC address blocks: 1455 AfriNIC Region origin ASes present in the Internet Routing Table: 103 AfriNIC Prefixes per ASN: 30.97 AfriNIC Region origin ASes announcing only one prefix: 42 AfriNIC Region transit ASes present in the Internet Routing Table: 27 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 50 Number of AfriNIC addresses announced to Internet: 5502720 Equivalent to 0 /8s, 83 /16s and 247 /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 11877 8761 117 CHINAMOBILE-CN China Mobile Communication 9498 4395 502 304 BBIL-AP BHARTI Airtel Ltd., IN 24560 2911 864 509 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2762 812 179 CMNET-JIANGSU-AP China Mobile communicati 4766 1943 6030 917 KIXS-AS-KR Korea Telecom, KR 45609 1912 835 336 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1647 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1641 192 50 CMNET-HUNAN-AP China Mobile communication 9919 972 170 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 2451 341 653 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2318 3753 1348 AMAZON-02, US 20115 2245 3099 511 CHARTER-20115, US 11492 1973 137 1056 CABLEONE, US 714 1246 4391 8 APPLE-ENGINEERING, US 8075 792 16023 669 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1882 301 TWC-10796-MIDWEST, US 12083 559 192 88 WOW-INTERNET, US 2152 427 48 267 CENIC-2152, US 33363 379 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 2981 2203 945 ROSTELECOM-AS PJSC Rostelecom. Technical 49505 961 101 408 SELECTEL, RU 25019 882 608 381 SAUDINETSTC-AS, SA 9123 678 42 306 TIMEWEB-AS, RU 9198 520 208 188 KAZTELECOM-AS, KZ 50010 489 72 10 NAWRAS-AS Sultanate of Oman, OM 9155 430 37 9 QNET Kuwait, KW 21299 427 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 50340 380 39 243 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 2179 679 302 UNINET, MX 8167 342 1089 44 V tal, BR 7738 295 927 70 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 262287 149 25 125 Latitude.sh LTDA, BR 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 123 10 26 CPS, AR 11340 109 9 52 Red Universitaria Nacional, CL 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 581 82 3 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 6879 24 2 9 ENSTINET-, EG 328543 22 8 3 sun-asn, SC 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 11877 8761 117 CHINAMOBILE-CN China Mobile Communication 9498 4395 502 304 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 12389 2981 2203 945 ROSTELECOM-AS PJSC Rostelecom. Technical 24560 2911 864 509 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2762 812 179 CMNET-JIANGSU-AP China Mobile communicati 30036 2451 341 653 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2318 3753 1348 AMAZON-02, US 20115 2245 3099 511 CHARTER-20115, US 8151 2179 679 302 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 4395 4091 BBIL-AP BHARTI Airtel Ltd., IN 56046 2762 2583 CMNET-JIANGSU-AP China Mobile communications co 24560 2911 2402 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 12389 2981 2036 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 8151 2179 1877 UNINET, MX 30036 2451 1798 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2245 1734 CHARTER-20115, US 56047 1641 1591 CMNET-HUNAN-AP China Mobile communications corp 45609 1912 1576 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 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 134117 UNALLOCATED 45.114.100.0/24 56082 ONE-NET-HK INTERNET-SOL 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 45.114.100.0/24 Origin: 134117 UNASSIGNED 45.114.100.0/24 Transit: 56082 ONE-NET-HK INTERNET-SOLUTION-, HK 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 103.54.52.0/24 Origin: 134117 UNASSIGNED 103.54.52.0/24 Transit: 56082 ONE-NET-HK INTERNET-SOLUTION-, 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 /10:12 /11:11 /12:44 /13:76 /14:147 /15:377 /16:2321 /17:1295 /18:2622 /19:4478 /20:7660 /21:9215 /22:16716 /23:15895 /24:97110 /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 2134 2451 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1899 2981 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1361 1973 CABLEONE, US 8151 1236 2179 UNINET, MX 49505 673 961 SELECTEL, RU 36914 557 581 KENET-AS, KE 9123 552 678 TIMEWEB-AS, RU 20115 549 2245 CHARTER-20115, US 16509 507 2318 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:154 2:313 3:108 5:1121 8:81 12:75 13:96 14:382 15:59 16:62 17:331 18:75 20:28 23:647 24:592 25:2 27:489 31:571 32:2 34:3 35:52 36:2727 37:641 38:516 39:709 40:1 41:258 42:112 43:682 44:19 45:2215 46:780 47:60 49:200 50:329 51:136 52:257 54:62 57:28 58:254 59:556 60:101 61:778 62:586 63:126 64:368 65:174 66:354 67:304 68:68 69:268 70:42 71:77 72:223 74:222 75:66 76:63 77:500 78:459 79:245 80:229 81:315 82:403 83:189 84:199 85:472 86:126 87:335 88:100 89:469 90:136 91:1370 92:425 93:939 94:856 95:1520 96:267 97:146 98:74 99:45 101:471 102:102 103:7552 104:332 105:9 106:291 107:99 108:176 109:552 110:248 111:2216 112:1130 113:276 114:830 115:287 116:345 117:1282 118:232 119:221 120:1519 121:383 122:1717 123:396 124:315 125:1562 126:4 128:369 129:71 130:111 131:181 132:71 133:303 134:108 135:26 136:67 137:178 138:291 139:125 140:325 141:156 142:81 143:142 144:135 145:129 146:338 147:247 148:349 149:217 150:228 151:554 152:445 153:37 154:729 155:185 156:504 157:240 158:120 159:387 160:632 161:140 162:273 163:330 164:159 165:216 166:54 167:149 168:566 169:69 170:427 171:55 172:174 173:997 174:124 175:575 176:735 177:439 178:690 179:142 180:449 181:166 182:1657 183:1286 184:109 185:2324 186:226 187:592 188:780 189:317 190:436 191:84 192:1770 193:1121 194:927 195:787 196:333 197:413 198:727 199:486 200:790 201:545 202:2362 203:1960 204:271 205:262 206:313 207:341 208:237 209:298 210:1363 211:1184 212:817 213:542 216:346 217:596 218:822 219:61 220:553 221:519 222:128 223:1444 End of report