IPv4 R&E Routing Table Report 20:30 GMT Thu 24 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: 158126 Prefixes after maximum aggregation (per Origin AS): 61878 Deaggregation factor: 2.56 Unique aggregates announced (without unneeded subnets): 88686 Number of IPv4 prefixes with a valid ROA: 86114 Number of IPv4 prefixes with an invalid ROA: 61 Number of IPv4 prefixes with no ROA: 71951 Total ASes present in the Internet Routing Table: 14240 Prefixes per ASN: 11.10 Origin-only ASes present in the Internet Routing Table: 12033 Origin ASes announcing only one prefix: 5857 Transit ASes present in the Internet Routing Table: 2207 Transit-only ASes present in the Internet Routing Table: 511 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: 83 Number of instances of unregistered ASNs: 83 Number of 32-bit ASNs allocated by the RIRs: 46895 Number of 32-bit ASNs visible in the Routing Table: 6967 Prefixes from 32-bit ASNs in the Routing Table: 28770 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: 480090368 Equivalent to 28 /8s, 157 /16s and 153 /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: 39682 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 77358 Total APNIC prefixes after maximum aggregation: 23212 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 75790 Unique aggregates announced from the APNIC address blocks: 34259 APNIC Region origin ASes present in the Internet Routing Table: 4664 APNIC Prefixes per ASN: 16.25 APNIC Region origin ASes announcing only one prefix: 1733 APNIC Region transit ASes present in the Internet Routing Table: 709 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: 3014 Number of APNIC addresses announced to Internet: 181396480 Equivalent to 10 /8s, 207 /16s and 228 /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: 26405 Total ARIN prefixes after maximum aggregation: 14331 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 25543 Unique aggregates announced from the ARIN address blocks: 20671 ARIN Region origin ASes present in the Internet Routing Table: 2083 ARIN Prefixes per ASN: 12.26 ARIN Region origin ASes announcing only one prefix: 997 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: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 473 Number of ARIN addresses announced to Internet: 148978176 Equivalent to 8 /8s, 225 /16s and 58 /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: 41107 Total RIPE prefixes after maximum aggregation: 19564 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 42336 Unique aggregates announced from the RIPE address blocks: 26586 RIPE Region origin ASes present in the Internet Routing Table: 4782 RIPE Prefixes per ASN: 8.85 RIPE Region origin ASes announcing only one prefix: 2223 RIPE Region transit ASes present in the Internet Routing Table: 697 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: 1721 Number of RIPE addresses announced to Internet: 125312768 Equivalent to 7 /8s, 120 /16s and 31 /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: 11946 Total LACNIC prefixes after maximum aggregation: 4305 LACNIC Deaggregation factor: 2.77 Prefixes being announced from the LACNIC address blocks: 11588 Unique aggregates announced from the LACNIC address blocks: 5643 LACNIC Region origin ASes present in the Internet Routing Table: 2064 LACNIC Prefixes per ASN: 5.61 LACNIC Region origin ASes announcing only one prefix: 860 LACNIC Region transit ASes present in the Internet Routing Table: 451 Average LACNIC Region AS path length visible: 7.2 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1704 Number of LACNIC addresses announced to Internet: 17794304 Equivalent to 1 /8s, 15 /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: 1227 Total AfriNIC prefixes after maximum aggregation: 406 AfriNIC Deaggregation factor: 3.02 Prefixes being announced from the AfriNIC address blocks: 2837 Unique aggregates announced from the AfriNIC address blocks: 1496 AfriNIC Region origin ASes present in the Internet Routing Table: 110 AfriNIC Prefixes per ASN: 25.79 AfriNIC Region origin ASes announcing only one prefix: 44 AfriNIC Region transit ASes present in the Internet Routing Table: 30 Average AfriNIC Region AS path length visible: 5.8 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 55 Number of AfriNIC addresses announced to Internet: 6582784 Equivalent to 0 /8s, 100 /16s and 114 /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 11854 8761 117 CHINAMOBILE-CN China Mobile Communication 9498 4395 502 304 BBIL-AP BHARTI Airtel Ltd., IN 24560 2910 863 511 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 1890 831 333 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 2462 341 615 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2315 3753 1344 AMAZON-02, US 20115 2245 3099 511 CHARTER-20115, US 11492 1973 137 1056 CABLEONE, US 714 1244 4391 8 APPLE-ENGINEERING, US 8075 788 16023 666 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1882 301 TWC-10796-MIDWEST, US 12083 560 192 88 WOW-INTERNET, US 2152 429 48 269 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 2982 2203 944 ROSTELECOM-AS PJSC Rostelecom. Technical 49505 959 101 408 SELECTEL, RU 25019 883 608 381 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 430 37 9 QNET Kuwait, KW 21299 427 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 50340 379 39 242 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 2169 678 306 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 2018 374 318 69 TENET-1, ZA 36914 156 82 3 KENET-AS, KE 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 23 8 4 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 11854 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 2982 2203 944 ROSTELECOM-AS PJSC Rostelecom. Technical 24560 2910 863 511 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2762 812 179 CMNET-JIANGSU-AP China Mobile communicati 30036 2462 341 615 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2315 3753 1344 AMAZON-02, US 20115 2245 3099 511 CHARTER-20115, US 8151 2169 678 306 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 2910 2399 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 12389 2982 2038 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 8151 2169 1863 UNINET, MX 30036 2462 1847 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2245 1734 CHARTER-20115, US 56047 1641 1591 CMNET-HUNAN-AP China Mobile communications corp 56041 1647 1573 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 36928 UNALLOCATED 41.205.224.0/19 329109 ZL5-AS, SL 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 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 41.205.224.0/19 Origin: 36928 RESERVED, ZZ 41.205.224.0/19 Transit: 329109 ZL5-AS, SL 45.114.100.0/24 Origin: 134117 , 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 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 /13:76 /14:147 /15:377 /16:2321 /17:1287 /18:2630 /19:4475 /20:7664 /21:9271 /22:16748 /23:15976 /24:97083 /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 2145 2462 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1899 2982 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1361 1973 CABLEONE, US 8151 1231 2169 UNINET, MX 49505 671 959 SELECTEL, RU 9123 552 678 TIMEWEB-AS, RU 20115 549 2245 CHARTER-20115, US 50010 510 612 NAWRAS-AS Sultanate of Oman, OM 16509 504 2315 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:140 2:311 3:108 5:1144 8:99 12:74 13:95 14:379 15:59 16:62 17:331 18:75 20:28 23:652 24:594 25:2 27:480 31:573 32:2 34:3 35:51 36:2708 37:643 38:522 39:708 40:1 41:88 42:113 43:674 44:19 45:2249 46:788 47:60 49:200 50:335 51:136 52:255 54:62 57:28 58:251 59:552 60:99 61:778 62:569 63:129 64:373 65:182 66:355 67:304 68:68 69:268 70:38 71:77 72:222 74:221 75:66 76:63 77:503 78:459 79:245 80:229 81:307 82:403 83:189 84:203 85:472 86:128 87:335 88:101 89:464 90:136 91:1377 92:424 93:945 94:874 95:1519 96:269 97:146 98:74 99:45 101:467 102:111 103:7574 104:339 105:9 106:298 107:106 108:176 109:551 110:248 111:2203 112:1119 113:277 114:838 115:286 116:328 117:1280 118:253 119:220 120:1518 121:383 122:1722 123:399 124:312 125:1565 126:4 128:379 129:72 130:113 131:191 132:72 133:303 134:106 135:25 136:67 137:177 138:301 139:124 140:325 141:160 142:81 143:141 144:136 145:129 146:338 147:248 148:348 149:223 150:229 151:554 152:449 153:37 154:733 155:188 156:516 157:244 158:121 159:387 160:642 161:139 162:291 163:331 164:159 165:239 166:54 167:159 168:570 169:72 170:446 171:55 172:209 173:1005 174:125 175:573 176:735 177:459 178:684 179:154 180:410 181:162 182:1661 183:1295 184:110 185:2336 186:228 187:596 188:788 189:308 190:436 191:87 192:1774 193:1125 194:922 195:790 196:334 197:170 198:734 199:487 200:817 201:536 202:2368 203:1967 204:270 205:262 206:317 207:343 208:236 209:304 210:1378 211:1185 212:814 213:543 216:349 217:596 218:821 219:60 220:556 221:520 222:128 223:1443 End of report