IPv4 R&E Routing Table Report 20:15 GMT Sun 06 Jul, 2025 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 279321 Prefixes after maximum aggregation (per Origin AS): 120901 Deaggregation factor: 2.31 Unique aggregates announced (without unneeded subnets): 144073 Number of IPv4 prefixes with a valid ROA: 130630 Number of IPv4 prefixes with an invalid ROA: 45 Number of IPv4 prefixes with no ROA: 148646 Total ASes present in the Internet Routing Table: 20927 Prefixes per ASN: 13.35 Origin-only ASes present in the Internet Routing Table: 18029 Origin ASes announcing only one prefix: 8060 Transit ASes present in the Internet Routing Table: 2898 Transit-only ASes present in the Internet Routing Table: 723 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 30 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 371 Number of instances of unregistered ASNs: 403 Number of 32-bit ASNs allocated by the RIRs: 46782 Number of 32-bit ASNs visible in the Routing Table: 8367 Prefixes from 32-bit ASNs in the Routing Table: 33347 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 110 Number of addresses announced to Internet: 1646110917 Equivalent to 98 /8s, 29 /16s and 168 /24s Percentage of available address space announced: 44.5 Percentage of allocated address space announced: 44.5 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: 90030 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33779 Total APNIC prefixes after maximum aggregation: 7501 APNIC Deaggregation factor: 4.50 Prefixes being announced from the APNIC address blocks: 32546 Unique aggregates announced from the APNIC address blocks: 7841 APNIC Region origin ASes present in the Internet Routing Table: 1266 APNIC Prefixes per ASN: 25.71 APNIC Region origin ASes announcing only one prefix: 510 APNIC Region transit ASes present in the Internet Routing Table: 199 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 606 Number of APNIC addresses announced to Internet: 173132652 Equivalent to 10 /8s, 81 /16s and 203 /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: 126577 Total ARIN prefixes after maximum aggregation: 66487 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124902 Unique aggregates announced from the ARIN address blocks: 67793 ARIN Region origin ASes present in the Internet Routing Table: 9319 ARIN Prefixes per ASN: 13.40 ARIN Region origin ASes announcing only one prefix: 3861 ARIN Region transit ASes present in the Internet Routing Table: 882 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2188 Number of ARIN addresses announced to Internet: 1029130505 Equivalent to 61 /8s, 87 /16s and 73 /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: 51138 Total RIPE prefixes after maximum aggregation: 27715 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52711 Unique aggregates announced from the RIPE address blocks: 38475 RIPE Region origin ASes present in the Internet Routing Table: 4685 RIPE Prefixes per ASN: 11.25 RIPE Region origin ASes announcing only one prefix: 1971 RIPE Region transit ASes present in the Internet Routing Table: 696 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1926 Number of RIPE addresses announced to Internet: 288360528 Equivalent to 17 /8s, 48 /16s and 8 /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: 56749 Total LACNIC prefixes after maximum aggregation: 16563 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 55032 Unique aggregates announced from the LACNIC address blocks: 24935 LACNIC Region origin ASes present in the Internet Routing Table: 4522 LACNIC Prefixes per ASN: 12.17 LACNIC Region origin ASes announcing only one prefix: 1610 LACNIC Region transit ASes present in the Internet Routing Table: 905 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3497 Number of LACNIC addresses announced to Internet: 109355008 Equivalent to 6 /8s, 132 /16s and 160 /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: 10707 Total AfriNIC prefixes after maximum aggregation: 2376 AfriNIC Deaggregation factor: 4.51 Prefixes being announced from the AfriNIC address blocks: 14020 Unique aggregates announced from the AfriNIC address blocks: 4920 AfriNIC Region origin ASes present in the Internet Routing Table: 285 AfriNIC Prefixes per ASN: 49.19 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 150 Number of AfriNIC addresses announced to Internet: 46018048 Equivalent to 2 /8s, 190 /16s and 46 /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 11374 8759 113 CHINAMOBILE-CN China Mobile Communication 56046 2366 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 611 2169 463 SINET-AS Research Organization of Informa 45102 532 883 137 ALIBABA-CN-NET Alibaba US Technology Co., 24445 524 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 17561 521 33 148 LCS-AS-AP LARUS Limited, HK Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13560 40947 5218 AMAZON-02, US 22773 3335 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2837 215 1730 USDA-1, US 36352 2559 210 1138 AS-COLOCROSSING, US 367 2458 3164 1163 DNIC-ASBLK-00306-00371, US 6167 1909 3939 521 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1776 22857 1324 ATT-INTERNET4, US 209 1657 4889 270 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1186 92 963 AKAMAI-ASN1, NL 3257 1041 2082 805 GTT-BACKBONE GTT, US 34984 934 116 603 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 8452 815 1841 16 TE-AS TE-AS, EG 25019 815 1301 129 SAUDINETSTC-AS, SA 212238 663 47 587 CDNEXT, GB 8376 573 53 20 Jordan Data Communications, JO 51167 568 113 251 CONTABO, DE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 7478 2018 907 UNINET, MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 10620 1711 248 1231 Telmex Colombia S.A., CO 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 26615 1021 2487 55 TIM SA, BR 18881 884 1127 31 TELEFONICA BRASIL S.A, BR 11172 723 124 70 Alestra, S. de R.L. de C.V., MX 27651 646 91 44 ENTEL CHILE S.A., CL 28006 643 77 294 CORPORACION NACIONAL DE TELECOMUNICACIONE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1451 389 16 LINKdotNET-AS, EG 29571 1158 100 63 ORANGE-COTE-IVOIRE, CI 24835 1014 470 107 RAYA-AS, EG 36935 599 517 41 Vodafone-, EG 36914 576 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 524 1161 171 ETISALAT-MISR, EG 36903 482 218 340 MT-MPLS, MA 37069 465 1062 15 MOBINIL, EG 2018 376 318 69 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13560 40947 5218 AMAZON-02, US 9808 11374 8759 113 CHINAMOBILE-CN China Mobile Communication 8151 7478 2018 907 UNINET, MX 22773 3335 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2837 215 1730 USDA-1, US 36352 2559 210 1138 AS-COLOCROSSING, US 367 2458 3164 1163 DNIC-ASBLK-00306-00371, US 56046 2366 811 188 CMNET-JIANGSU-AP China Mobile communicati 11830 1986 369 64 Instituto Costarricense de Electricidad y Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 11374 11261 CHINAMOBILE-CN China Mobile Communications Grou 8151 7478 6571 UNINET, MX 22773 3335 3172 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2366 2178 CMNET-JIANGSU-AP China Mobile communications co 11830 1986 1922 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1451 1435 LINKdotNET-AS, EG 56047 1482 1432 CMNET-HUNAN-AP China Mobile communications corp Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 Transit: 37662 WIOCC-AS, MU 41.67.252.0/23 Origin: 15964 CAMNET-AS, CM 41.67.252.0/23 Transit: 37662 WIOCC-AS, MU 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:14 /9:11 /10:31 /11:51 /12:160 /13:219 /14:592 /15:1108 /16:7728 /17:3515 /18:4293 /19:7807 /20:12898 /21:16072 /22:28813 /23:29424 /24:166355 /25:63 /26:80 /27:37 /28:16 /29:18 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4000 7478 UNINET, MX 22773 2491 3335 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2329 13560 AMAZON-02, US 11830 1690 1986 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1025 2559 AS-COLOCROSSING, US 19901 1015 1319 BRSPD-PUBLIC, US 10620 993 1711 Telmex Colombia S.A., CO 209 962 1657 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:21 2:456 3:822 4:5 5:808 6:149 7:5 8:654 11:171 12:975 13:391 14:113 15:307 16:247 17:4 18:886 20:144 21:4 22:188 23:2643 24:684 27:25 29:19 31:525 32:18 33:1 34:10 35:179 36:2071 37:793 38:2596 39:552 40:78 41:1000 42:21 43:228 44:29 45:4386 46:1009 47:99 49:21 50:364 51:387 52:1382 54:315 55:1097 56:11 57:23 58:16 59:38 60:31 61:79 62:545 63:787 64:1923 65:1149 66:1601 67:1099 68:372 69:1255 70:449 71:190 72:719 74:963 75:320 76:258 77:497 78:371 79:254 80:297 81:378 82:725 83:214 84:358 85:485 86:245 87:221 88:305 89:720 90:106 91:991 92:695 93:493 94:983 95:682 96:289 97:59 98:506 99:189 100:42 101:21 102:381 103:1299 104:1682 105:213 106:40 107:1547 108:534 109:449 110:40 111:1932 112:578 113:40 114:52 115:28 116:58 117:1081 118:70 119:82 120:1399 121:49 122:88 123:130 124:69 125:25 126:1 128:515 129:393 130:669 131:1050 132:545 133:213 134:469 135:127 136:631 137:530 138:1002 139:439 140:737 141:367 142:1022 143:791 144:426 145:122 146:685 147:521 148:991 149:771 150:181 151:805 152:630 153:144 154:1387 155:859 156:1162 157:403 158:555 159:745 160:881 161:660 162:1077 163:435 164:723 165:579 166:811 167:700 168:1546 169:166 170:1767 171:110 172:1349 173:814 174:362 175:86 176:795 177:1106 178:614 179:892 180:41 181:2260 182:28 183:1033 184:462 185:3608 186:2808 187:1716 188:851 189:2005 190:6062 191:523 192:5277 193:1908 194:1270 195:967 196:738 197:1238 198:2745 199:5003 200:4684 201:3801 202:974 203:743 204:2225 205:1834 206:1579 207:1627 208:1584 209:2029 210:353 211:448 212:1041 213:809 214:923 215:35 216:2590 217:453 218:550 219:19 220:34 221:415 222:24 223:975 End of report