IPv4 R&E Routing Table Report 20:15 GMT Thu 28 Aug, 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: 281033 Prefixes after maximum aggregation (per Origin AS): 120507 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143214 Number of IPv4 prefixes with a valid ROA: 132494 Number of IPv4 prefixes with an invalid ROA: 52 Number of IPv4 prefixes with no ROA: 148487 Total ASes present in the Internet Routing Table: 20863 Prefixes per ASN: 13.47 Origin-only ASes present in the Internet Routing Table: 17950 Origin ASes announcing only one prefix: 8007 Transit ASes present in the Internet Routing Table: 2913 Transit-only ASes present in the Internet Routing Table: 714 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 345 Number of instances of unregistered ASNs: 374 Number of 32-bit ASNs allocated by the RIRs: 47273 Number of 32-bit ASNs visible in the Routing Table: 8365 Prefixes from 32-bit ASNs in the Routing Table: 34327 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 101 Number of addresses announced to Internet: 1628641285 Equivalent to 97 /8s, 19 /16s and 24 /24s Percentage of available address space announced: 44.0 Percentage of allocated address space announced: 44.0 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: 89845 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35915 Total APNIC prefixes after maximum aggregation: 7342 APNIC Deaggregation factor: 4.89 Prefixes being announced from the APNIC address blocks: 34901 Unique aggregates announced from the APNIC address blocks: 7420 APNIC Region origin ASes present in the Internet Routing Table: 1188 APNIC Prefixes per ASN: 29.38 APNIC Region origin ASes announcing only one prefix: 468 APNIC Region transit ASes present in the Internet Routing Table: 187 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 557 Number of APNIC addresses announced to Internet: 163373420 Equivalent to 9 /8s, 188 /16s and 225 /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: 126685 Total ARIN prefixes after maximum aggregation: 66732 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125178 Unique aggregates announced from the ARIN address blocks: 68550 ARIN Region origin ASes present in the Internet Routing Table: 9252 ARIN Prefixes per ASN: 13.53 ARIN Region origin ASes announcing only one prefix: 3848 ARIN Region transit ASes present in the Internet Routing Table: 867 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2182 Number of ARIN addresses announced to Internet: 1023875337 Equivalent to 61 /8s, 7 /16s and 25 /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: 49839 Total RIPE prefixes after maximum aggregation: 26932 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52062 Unique aggregates announced from the RIPE address blocks: 37999 RIPE Region origin ASes present in the Internet Routing Table: 4745 RIPE Prefixes per ASN: 10.97 RIPE Region origin ASes announcing only one prefix: 1996 RIPE Region transit ASes present in the Internet Routing Table: 721 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1988 Number of RIPE addresses announced to Internet: 284016720 Equivalent to 16 /8s, 237 /16s and 192 /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: 57107 Total LACNIC prefixes after maximum aggregation: 16824 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 55151 Unique aggregates announced from the LACNIC address blocks: 25013 LACNIC Region origin ASes present in the Internet Routing Table: 4536 LACNIC Prefixes per ASN: 12.16 LACNIC Region origin ASes announcing only one prefix: 1598 LACNIC Region transit ASes present in the Internet Routing Table: 920 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: 3486 Number of LACNIC addresses announced to Internet: 108661056 Equivalent to 6 /8s, 122 /16s and 9 /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: 11142 Total AfriNIC prefixes after maximum aggregation: 2416 AfriNIC Deaggregation factor: 4.61 Prefixes being announced from the AfriNIC address blocks: 13640 Unique aggregates announced from the AfriNIC address blocks: 4136 AfriNIC Region origin ASes present in the Internet Routing Table: 290 AfriNIC Prefixes per ASN: 47.03 AfriNIC Region origin ASes announcing only one prefix: 97 AfriNIC Region transit ASes present in the Internet Routing Table: 82 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 152 Number of AfriNIC addresses announced to Internet: 48602368 Equivalent to 2 /8s, 229 /16s and 157 /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 114 CHINAMOBILE-CN China Mobile Communication 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1689 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1673 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 827 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 610 2169 463 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 540 894 138 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 14003 40854 5387 AMAZON-02, US 22773 3348 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2961 231 1751 USDA-1, US 36352 2526 207 1169 AS-COLOCROSSING, US 367 2390 2753 1117 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 7018 1473 22778 1110 ATT-INTERNET4, 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 1196 93 977 AKAMAI-ASN1, NL 3215 923 4895 286 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 677 49 605 CDNEXT, GB 34984 643 95 500 TELLCOM-AS, TR 8376 596 53 26 Jordan Data Communications, JO 8452 574 1841 16 TE-AS TE-AS, EG 51167 567 113 248 CONTABO, DE 35819 520 516 55 MOBILY-AS Etihad Etisalat Company Mobily, 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 7201 1951 786 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1667 239 1204 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1181 371 22 Telefonica del Peru S.A.A., PE 26615 1010 2487 55 TIM SA, BR 18881 892 1127 31 TELEFONICA BRASIL S.A, BR 11664 795 278 29 Techtel LMDS Comunicaciones Interactivas 22884 692 43 422 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 27651 651 92 45 ENTEL CHILE S.A., CL 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 24835 1286 572 23 RAYA-AS, EG 29571 1151 93 59 ORANGE-COTE-IVOIRE, CI 24863 966 389 23 LINKdotNET-AS, EG 37069 676 1096 13 MOBINIL, EG 36935 618 522 42 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 572 82 3 KENET-AS, KE 36903 548 242 359 MT-MPLS, MA 36992 432 1038 209 ETISALAT-MISR, EG 2018 375 318 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 14003 40854 5387 AMAZON-02, US 9808 12726 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7201 1951 786 UNINET, MX 22773 3348 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2961 231 1751 USDA-1, US 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2526 207 1169 AS-COLOCROSSING, US 367 2390 2753 1117 DNIC-ASBLK-00306-00371, US 11830 1988 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 12726 12612 CHINAMOBILE-CN China Mobile Communications Grou 8151 7201 6415 UNINET, MX 22773 3348 3171 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2915 2725 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1689 1639 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1948 1428 CELLCO-PART, US 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 396146 UNALLOCATED 8.44.213.0/24 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 23.174.40.0/24 Origin: 27317 RESERVED, ZZ 23.174.40.0/24 Transit: 21738 ROZINT, US 41.57.124.0/24 Origin: 37442 RESERVED, ZZ 41.57.124.0/24 Transit: 37204 TELONE, ZW 41.57.127.0/24 Origin: 37442 RESERVED, ZZ 41.57.127.0/24 Transit: 37204 TELONE, ZW 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 /10:30 /11:52 /12:158 /13:223 /14:590 /15:1115 /16:7651 /17:3478 /18:4112 /19:7569 /20:13021 /21:15826 /22:28526 /23:29530 /24:168885 /25:67 /26:82 /27:52 /28:18 /29:8 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3881 7201 UNINET, MX 22773 2502 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2396 14003 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1037 1392 BRIGHTSPEED, US 36352 1004 2526 AS-COLOCROSSING, US 10620 978 1667 Telmex Colombia S.A., CO 209 959 1649 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) ---------------------------------------------- 1:45 2:462 3:915 4:5 5:868 6:143 7:5 8:647 9:3 11:171 12:886 13:431 14:120 15:332 16:247 17:3 18:895 20:191 21:4 22:188 23:2674 24:670 27:26 29:19 31:494 32:12 34:10 35:174 36:3079 37:851 38:2645 39:635 40:91 41:1126 42:281 43:204 44:29 45:4320 46:1034 47:114 49:20 50:482 51:383 52:1392 54:334 55:1111 56:11 57:25 58:44 59:34 60:31 61:53 62:530 63:783 64:1945 65:1095 66:1586 67:1080 68:367 69:1233 70:446 71:184 72:691 74:961 75:322 76:250 77:432 78:363 79:249 80:321 81:385 82:719 83:222 84:318 85:458 86:262 87:223 88:303 89:845 90:109 91:987 92:698 93:459 94:970 95:652 96:264 97:54 98:496 99:217 100:40 101:21 102:449 103:1226 104:1673 105:219 106:54 107:1553 108:534 109:395 110:52 111:2250 112:874 113:39 114:50 115:18 116:50 117:1217 118:68 119:65 120:1504 121:46 122:61 123:130 124:65 125:22 126:1 128:540 129:398 130:654 131:1053 132:564 133:221 134:511 135:122 136:681 137:517 138:1044 139:448 140:693 141:478 142:988 143:857 144:411 145:154 146:654 147:492 148:1005 149:772 150:196 151:841 152:624 153:180 154:949 155:947 156:867 157:419 158:669 159:729 160:909 161:672 162:1017 163:453 164:782 165:682 166:821 167:703 168:1563 169:163 170:1866 171:102 172:1313 173:814 174:366 175:85 176:506 177:1008 178:600 179:935 180:43 181:2336 182:25 183:1163 184:449 185:3572 186:3123 187:1756 188:809 189:1921 190:6080 191:539 192:5244 193:1852 194:1222 195:969 196:929 197:1140 198:2733 199:5172 200:4490 201:3666 202:987 203:707 204:2203 205:1833 206:1589 207:1612 208:1573 209:1994 210:352 211:477 212:922 213:800 214:954 215:39 216:2588 217:471 218:596 219:19 220:32 221:452 222:24 223:1266 End of report