IPv4 R&E Routing Table Report 20:15 GMT Sun 21 Sep, 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: 277303 Prefixes after maximum aggregation (per Origin AS): 118433 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 141347 Number of IPv4 prefixes with a valid ROA: 129404 Number of IPv4 prefixes with an invalid ROA: 210 Number of IPv4 prefixes with no ROA: 147689 Total ASes present in the Internet Routing Table: 20347 Prefixes per ASN: 13.63 Origin-only ASes present in the Internet Routing Table: 17545 Origin ASes announcing only one prefix: 7788 Transit ASes present in the Internet Routing Table: 2802 Transit-only ASes present in the Internet Routing Table: 687 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: 341 Number of instances of unregistered ASNs: 370 Number of 32-bit ASNs allocated by the RIRs: 47520 Number of 32-bit ASNs visible in the Routing Table: 8114 Prefixes from 32-bit ASNs in the Routing Table: 33698 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: 92 Number of addresses announced to Internet: 1615552997 Equivalent to 96 /8s, 75 /16s and 97 /24s Percentage of available address space announced: 43.6 Percentage of allocated address space announced: 43.6 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: 87241 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 37200 Total APNIC prefixes after maximum aggregation: 7680 APNIC Deaggregation factor: 4.84 Prefixes being announced from the APNIC address blocks: 36122 Unique aggregates announced from the APNIC address blocks: 7730 APNIC Region origin ASes present in the Internet Routing Table: 1156 APNIC Prefixes per ASN: 31.25 APNIC Region origin ASes announcing only one prefix: 452 APNIC Region transit ASes present in the Internet Routing Table: 190 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 529 Number of APNIC addresses announced to Internet: 162251884 Equivalent to 9 /8s, 171 /16s and 196 /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: 126361 Total ARIN prefixes after maximum aggregation: 66012 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123751 Unique aggregates announced from the ARIN address blocks: 67430 ARIN Region origin ASes present in the Internet Routing Table: 9171 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 3808 ARIN Region transit ASes present in the Internet Routing Table: 850 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: 2157 Number of ARIN addresses announced to Internet: 1022050537 Equivalent to 60 /8s, 235 /16s and 64 /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: 46005 Total RIPE prefixes after maximum aggregation: 25519 RIPE Deaggregation factor: 1.80 Prefixes being announced from the RIPE address blocks: 48477 Unique aggregates announced from the RIPE address blocks: 36523 RIPE Region origin ASes present in the Internet Routing Table: 4437 RIPE Prefixes per ASN: 10.93 RIPE Region origin ASes announcing only one prefix: 1857 RIPE Region transit ASes present in the Internet Routing Table: 675 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1836 Number of RIPE addresses announced to Internet: 276356432 Equivalent to 16 /8s, 120 /16s and 221 /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: 56644 Total LACNIC prefixes after maximum aggregation: 16452 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54722 Unique aggregates announced from the LACNIC address blocks: 24478 LACNIC Region origin ASes present in the Internet Routing Table: 4461 LACNIC Prefixes per ASN: 12.27 LACNIC Region origin ASes announcing only one prefix: 1560 LACNIC Region transit ASes present in the Internet Routing Table: 884 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3426 Number of LACNIC addresses announced to Internet: 108562240 Equivalent to 6 /8s, 120 /16s and 135 /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: 10752 Total AfriNIC prefixes after maximum aggregation: 2515 AfriNIC Deaggregation factor: 4.28 Prefixes being announced from the AfriNIC address blocks: 14139 Unique aggregates announced from the AfriNIC address blocks: 5096 AfriNIC Region origin ASes present in the Internet Routing Table: 300 AfriNIC Prefixes per ASN: 47.13 AfriNIC Region origin ASes announcing only one prefix: 111 AfriNIC Region transit ASes present in the Internet Routing Table: 77 Average AfriNIC Region AS path length visible: 6.8 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 166 Number of AfriNIC addresses announced to Internet: 46223872 Equivalent to 2 /8s, 193 /16s and 82 /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 13306 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3014 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1728 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1709 192 50 CMNET-HUNAN-AP China Mobile communication 24444 892 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 865 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 622 497 68 CMNET-V4HENAN-AS-AP Henan Mobile Communic 2907 610 2169 462 SINET-AS Research Organization of Informa 132525 588 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 7545 585 77 426 TPG-INTERNET-AP TPG Telecom Limited, AU 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 14409 40908 5401 AMAZON-02, US 22773 3941 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3030 235 1725 USDA-1, US 36352 2512 206 1172 AS-COLOCROSSING, US 367 2073 2404 987 DNIC-ASBLK-00306-00371, US 6167 1934 4002 516 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1648 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1429 987 110 ATT-MOBILITY-LLC-AS20057, 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 20940 1209 95 985 AKAMAI-ASN1, NL 3215 893 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 801 1841 16 TE-AS TE-AS, EG 212238 690 50 614 CDNEXT, GB 34984 603 102 469 TELLCOM-AS, TR 8376 568 53 25 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 5511 523 128 439 OPENTRANSIT, FR 25019 519 1296 129 SAUDINETSTC-AS, SA 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 7286 1962 786 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1659 239 1206 Telmex Colombia S.A., CO 3816 1353 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1186 371 23 Telefonica del Peru S.A.A., PE 26615 1010 2487 55 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 816 278 29 Techtel LMDS Comunicaciones Interactivas 12252 695 164 24 America Movil Peru S.A.C., PE 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 1225 572 23 RAYA-AS, EG 24863 993 389 23 LINKdotNET-AS, EG 37069 977 1096 13 MOBINIL, EG 36935 648 521 41 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 565 82 3 KENET-AS, KE 36992 564 1069 299 ETISALAT-MISR, EG 36903 487 220 344 MT-MPLS, MA 29571 478 98 69 ORANGE-COTE-IVOIRE, CI 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 14409 40908 5401 AMAZON-02, US 9808 13306 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7286 1962 786 UNINET, MX 22773 3941 3045 313 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 3030 235 1725 USDA-1, US 56046 3014 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2512 206 1172 AS-COLOCROSSING, US 367 2073 2404 987 DNIC-ASBLK-00306-00371, US 11830 1989 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 13306 13188 CHINAMOBILE-CN China Mobile Communications Grou 8151 7286 6500 UNINET, MX 22773 3941 3628 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3014 2821 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1709 1659 CMNET-HUNAN-AP China Mobile communications corp 56041 1728 1650 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1934 1418 CELLCO-PART, US 209 1648 1380 CENTURYLINK-US-LEGACY-QWEST, 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 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 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 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4, US 26295 UNALLOCATED 12.110.210.0/23 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 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 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 /10:30 /11:51 /12:156 /13:214 /14:585 /15:1105 /16:7573 /17:3411 /18:4099 /19:7509 /20:12718 /21:15819 /22:28221 /23:29071 /24:166475 /25:66 /26:82 /27:49 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3943 7286 UNINET, MX 22773 2506 3941 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2449 14409 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 19901 1038 1400 BRIGHTSPEED, US 36352 995 2512 AS-COLOCROSSING, US 10620 970 1659 Telmex Colombia S.A., CO 209 958 1648 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1902 ATLANTICBB-JOHNSTOWN, US 6167 849 1934 CELLCO-PART, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:27 2:284 3:932 4:5 5:600 6:152 7:5 8:632 9:5 11:171 12:890 13:510 14:170 15:341 16:265 17:3 18:898 20:194 21:4 22:188 23:2520 24:681 27:55 29:19 31:457 32:12 34:11 35:180 36:3132 37:758 38:2443 39:714 40:93 41:1068 42:21 43:203 44:28 45:4274 46:971 47:117 49:20 50:472 51:382 52:1440 54:366 55:1092 56:11 57:28 58:18 59:36 60:90 61:60 62:545 63:764 64:1808 65:1073 66:1527 67:1069 68:368 69:1198 70:447 71:180 72:693 74:965 75:306 76:245 77:425 78:317 79:235 80:328 81:365 82:757 83:206 84:332 85:556 86:246 87:199 88:304 89:700 90:106 91:928 92:679 93:418 94:956 95:398 96:260 97:50 98:481 99:254 100:28 101:22 102:424 103:1064 104:1658 105:187 106:40 107:1545 108:528 109:387 110:102 111:2388 112:993 113:29 114:45 115:63 116:53 117:1357 118:73 119:71 120:1574 121:34 122:61 123:163 124:85 125:24 126:1 128:554 129:399 130:632 131:1055 132:566 133:221 134:478 135:121 136:681 137:500 138:1002 139:448 140:731 141:360 142:983 143:879 144:403 145:163 146:663 147:503 148:993 149:641 150:203 151:854 152:531 153:176 154:1136 155:966 156:1237 157:436 158:600 159:717 160:607 161:686 162:1012 163:436 164:763 165:638 166:811 167:694 168:1502 169:159 170:1859 171:103 172:1296 173:809 174:363 175:94 176:433 177:930 178:630 179:893 180:38 181:2349 182:29 183:1384 184:453 185:3228 186:3119 187:1700 188:749 189:1856 190:6339 191:588 192:5128 193:1813 194:1137 195:931 196:759 197:1154 198:2713 199:5194 200:4467 201:3639 202:996 203:771 204:2171 205:1801 206:1567 207:1576 208:1560 209:1953 210:361 211:496 212:889 213:698 214:950 215:40 216:2486 217:471 218:643 219:18 220:85 221:471 222:24 223:1396 End of report