IPv4 R&E Routing Table Report 20:15 GMT Thu 04 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: 276991 Prefixes after maximum aggregation (per Origin AS): 118334 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 140787 Number of IPv4 prefixes with a valid ROA: 130590 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 146359 Total ASes present in the Internet Routing Table: 20435 Prefixes per ASN: 13.55 Origin-only ASes present in the Internet Routing Table: 17617 Origin ASes announcing only one prefix: 7840 Transit ASes present in the Internet Routing Table: 2818 Transit-only ASes present in the Internet Routing Table: 695 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 337 Number of instances of unregistered ASNs: 366 Number of 32-bit ASNs allocated by the RIRs: 47315 Number of 32-bit ASNs visible in the Routing Table: 8132 Prefixes from 32-bit ASNs in the Routing Table: 33646 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: 90 Number of addresses announced to Internet: 1601321477 Equivalent to 95 /8s, 114 /16s and 58 /24s Percentage of available address space announced: 43.3 Percentage of allocated address space announced: 43.3 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: 88196 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35541 Total APNIC prefixes after maximum aggregation: 7367 APNIC Deaggregation factor: 4.82 Prefixes being announced from the APNIC address blocks: 34524 Unique aggregates announced from the APNIC address blocks: 7412 APNIC Region origin ASes present in the Internet Routing Table: 1194 APNIC Prefixes per ASN: 28.91 APNIC Region origin ASes announcing only one prefix: 470 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: 162738796 Equivalent to 9 /8s, 179 /16s and 50 /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: 125905 Total ARIN prefixes after maximum aggregation: 66161 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124231 Unique aggregates announced from the ARIN address blocks: 67721 ARIN Region origin ASes present in the Internet Routing Table: 9224 ARIN Prefixes per ASN: 13.47 ARIN Region origin ASes announcing only one prefix: 3836 ARIN Region transit ASes present in the Internet Routing Table: 862 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: 2171 Number of ARIN addresses announced to Internet: 1023282953 Equivalent to 60 /8s, 254 /16s and 15 /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: 47875 Total RIPE prefixes after maximum aggregation: 25688 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 50159 Unique aggregates announced from the RIPE address blocks: 36644 RIPE Region origin ASes present in the Internet Routing Table: 4432 RIPE Prefixes per ASN: 11.32 RIPE Region origin ASes announcing only one prefix: 1866 RIPE Region transit ASes present in the Internet Routing Table: 667 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1825 Number of RIPE addresses announced to Internet: 260526416 Equivalent to 15 /8s, 135 /16s and 81 /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: 56418 Total LACNIC prefixes after maximum aggregation: 16557 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 54555 Unique aggregates announced from the LACNIC address blocks: 24881 LACNIC Region origin ASes present in the Internet Routing Table: 4463 LACNIC Prefixes per ASN: 12.22 LACNIC Region origin ASes announcing only one prefix: 1559 LACNIC Region transit ASes present in the Internet Routing Table: 895 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: 3425 Number of LACNIC addresses announced to Internet: 108483904 Equivalent to 6 /8s, 119 /16s and 85 /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: 10915 Total AfriNIC prefixes after maximum aggregation: 2304 AfriNIC Deaggregation factor: 4.74 Prefixes being announced from the AfriNIC address blocks: 13432 Unique aggregates announced from the AfriNIC address blocks: 4040 AfriNIC Region origin ASes present in the Internet Routing Table: 292 AfriNIC Prefixes per ASN: 46.00 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.7 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 154 Number of AfriNIC addresses announced to Internet: 46179840 Equivalent to 2 /8s, 192 /16s and 166 /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 12721 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 828 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 609 2169 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 542 894 139 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 14230 40858 5398 AMAZON-02, US 22773 3350 3018 178 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2973 232 1748 USDA-1, US 36352 2513 206 1167 AS-COLOCROSSING, US 367 2370 2671 1113 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1901 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 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 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1202 94 978 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 8452 770 1841 16 TE-AS TE-AS, EG 212238 688 50 612 CDNEXT, GB 34984 656 111 509 TELLCOM-AS, TR 8376 591 53 26 Jordan Data Communications, JO 35819 578 576 71 MOBILY-AS Etihad Etisalat Company Mobily, 51167 567 113 248 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 7262 1962 784 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1658 239 1205 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 22 Telefonica del Peru S.A.A., PE 26615 1011 2487 55 TIM SA, BR 18881 893 1127 31 TELEFONICA BRASIL S.A, BR 11664 804 278 29 Techtel LMDS Comunicaciones Interactivas 22884 693 43 421 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 1303 572 23 RAYA-AS, EG 29571 1036 101 60 ORANGE-COTE-IVOIRE, CI 37069 999 1096 13 MOBINIL, EG 24863 981 389 23 LINKdotNET-AS, EG 36935 620 519 31 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 573 82 3 KENET-AS, KE 36992 497 1089 216 ETISALAT-MISR, EG 36903 454 203 332 MT-MPLS, MA 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 14230 40858 5398 AMAZON-02, US 9808 12721 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7262 1962 784 UNINET, MX 22773 3350 3018 178 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2973 232 1748 USDA-1, US 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2513 206 1167 AS-COLOCROSSING, US 367 2370 2671 1113 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 12721 12607 CHINAMOBILE-CN China Mobile Communications Grou 8151 7262 6478 UNINET, MX 22773 3350 3172 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2915 2725 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1901 1686 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 41.67.248.0/22 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 /8:13 /9:11 /10:30 /11:51 /12:157 /13:214 /14:585 /15:1107 /16:7584 /17:3417 /18:4101 /19:7610 /20:13220 /21:15802 /22:28196 /23:29102 /24:165548 /25:67 /26:83 /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 3921 7262 UNINET, MX 22773 2503 3350 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2403 14230 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1033 1388 BRIGHTSPEED, US 36352 998 2513 AS-COLOCROSSING, US 10620 969 1658 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1901 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:24 2:452 3:922 4:5 5:782 6:145 7:5 8:643 9:3 11:171 12:881 13:491 14:118 15:338 16:264 17:3 18:896 20:193 21:4 22:188 23:2569 24:689 27:26 29:19 31:487 32:12 34:12 35:175 36:3084 37:811 38:2502 39:635 40:93 41:1051 42:21 43:215 44:28 45:4208 46:974 47:114 49:21 50:474 51:383 52:1431 54:357 55:1103 56:11 57:23 58:17 59:33 60:30 61:53 62:515 63:772 64:1955 65:1093 66:1579 67:1075 68:360 69:1219 70:448 71:183 72:691 74:959 75:321 76:249 77:429 78:335 79:231 80:297 81:362 82:707 83:204 84:307 85:557 86:249 87:207 88:305 89:686 90:105 91:920 92:681 93:434 94:948 95:664 96:258 97:53 98:490 99:221 100:28 101:27 102:376 103:1226 104:1672 105:181 106:54 107:1552 108:518 109:380 110:52 111:2247 112:868 113:29 114:51 115:16 116:56 117:1214 118:70 119:67 120:1504 121:45 122:61 123:132 124:76 125:26 126:1 128:541 129:398 130:636 131:1089 132:568 133:221 134:479 135:122 136:685 137:494 138:1010 139:438 140:691 141:367 142:980 143:856 144:400 145:153 146:666 147:484 148:1003 149:763 150:203 151:785 152:505 153:180 154:901 155:913 156:881 157:437 158:581 159:722 160:898 161:677 162:1010 163:446 164:754 165:629 166:804 167:700 168:1508 169:163 170:1860 171:100 172:1315 173:814 174:362 175:93 176:473 177:956 178:585 179:911 180:41 181:2338 182:25 183:1166 184:450 185:3260 186:3163 187:1771 188:792 189:1921 190:6145 191:551 192:5144 193:1801 194:1133 195:909 196:706 197:1093 198:2704 199:5161 200:4430 201:3627 202:979 203:704 204:2196 205:1828 206:1594 207:1589 208:1555 209:1989 210:345 211:476 212:898 213:726 214:957 215:39 216:2494 217:466 218:596 219:18 220:32 221:452 222:24 223:1263 End of report