IPv4 R&E Routing Table Report 20:15 GMT Mon 01 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: 281164 Prefixes after maximum aggregation (per Origin AS): 120604 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143581 Number of IPv4 prefixes with a valid ROA: 132446 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 148676 Total ASes present in the Internet Routing Table: 20905 Prefixes per ASN: 13.45 Origin-only ASes present in the Internet Routing Table: 17974 Origin ASes announcing only one prefix: 7996 Transit ASes present in the Internet Routing Table: 2931 Transit-only ASes present in the Internet Routing Table: 738 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: 47305 Number of 32-bit ASNs visible in the Routing Table: 8406 Prefixes from 32-bit ASNs in the Routing Table: 34785 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: 102 Number of addresses announced to Internet: 1629373701 Equivalent to 97 /8s, 30 /16s and 69 /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: 89665 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36027 Total APNIC prefixes after maximum aggregation: 7413 APNIC Deaggregation factor: 4.86 Prefixes being announced from the APNIC address blocks: 34992 Unique aggregates announced from the APNIC address blocks: 7503 APNIC Region origin ASes present in the Internet Routing Table: 1194 APNIC Prefixes per ASN: 29.31 APNIC Region origin ASes announcing only one prefix: 466 APNIC Region transit ASes present in the Internet Routing Table: 191 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: 558 Number of APNIC addresses announced to Internet: 163233900 Equivalent to 9 /8s, 186 /16s and 192 /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: 126955 Total ARIN prefixes after maximum aggregation: 66653 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125363 Unique aggregates announced from the ARIN address blocks: 68600 ARIN Region origin ASes present in the Internet Routing Table: 9226 ARIN Prefixes per ASN: 13.59 ARIN Region origin ASes announcing only one prefix: 3832 ARIN Region transit ASes present in the Internet Routing Table: 866 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: 2169 Number of ARIN addresses announced to Internet: 1023788297 Equivalent to 61 /8s, 5 /16s and 197 /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: 49717 Total RIPE prefixes after maximum aggregation: 27015 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 51878 Unique aggregates announced from the RIPE address blocks: 38048 RIPE Region origin ASes present in the Internet Routing Table: 4729 RIPE Prefixes per ASN: 10.97 RIPE Region origin ASes announcing only one prefix: 1984 RIPE Region transit ASes present in the Internet Routing Table: 722 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1987 Number of RIPE addresses announced to Internet: 284652368 Equivalent to 16 /8s, 247 /16s and 115 /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: 57193 Total LACNIC prefixes after maximum aggregation: 16882 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 55327 Unique aggregates announced from the LACNIC address blocks: 25211 LACNIC Region origin ASes present in the Internet Routing Table: 4577 LACNIC Prefixes per ASN: 12.09 LACNIC Region origin ASes announcing only one prefix: 1602 LACNIC Region transit ASes present in the Internet Routing Table: 931 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: 3530 Number of LACNIC addresses announced to Internet: 108690752 Equivalent to 6 /8s, 122 /16s and 125 /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: 10927 Total AfriNIC prefixes after maximum aggregation: 2380 AfriNIC Deaggregation factor: 4.59 Prefixes being announced from the AfriNIC address blocks: 13502 Unique aggregates announced from the AfriNIC address blocks: 4122 AfriNIC Region origin ASes present in the Internet Routing Table: 303 AfriNIC Prefixes per ASN: 44.56 AfriNIC Region origin ASes announcing only one prefix: 112 AfriNIC Region transit ASes present in the Internet Routing Table: 81 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: 162 Number of AfriNIC addresses announced to Internet: 48894976 Equivalent to 2 /8s, 234 /16s and 20 /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 12724 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 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 14123 40855 5390 AMAZON-02, US 22773 3347 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2957 230 1737 USDA-1, US 36352 2525 207 1168 AS-COLOCROSSING, US 367 2355 2667 1101 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 1439 22771 1082 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 680 49 607 CDNEXT, GB 34984 644 96 501 TELLCOM-AS, TR 8376 596 53 26 Jordan Data Communications, JO 35819 578 576 71 MOBILY-AS Etihad Etisalat Company Mobily, 8452 574 1841 16 TE-AS TE-AS, EG 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 7209 1952 784 UNINET, MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 Telmex Colombia S.A., CO 3816 1351 788 204 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1179 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 795 278 29 Techtel LMDS Comunicaciones Interactivas 22884 691 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 1257 572 23 RAYA-AS, EG 29571 1151 93 59 ORANGE-COTE-IVOIRE, CI 24863 972 389 23 LINKdotNET-AS, EG 37069 672 1096 13 MOBINIL, EG 36935 604 519 31 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36903 548 242 359 MT-MPLS, MA 36914 486 82 3 KENET-AS, KE 36992 428 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 14123 40855 5390 AMAZON-02, US 9808 12724 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7209 1952 784 UNINET, MX 22773 3347 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2957 230 1737 USDA-1, US 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2525 207 1168 AS-COLOCROSSING, US 367 2355 2667 1101 DNIC-ASBLK-00306-00371, US 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 12724 12610 CHINAMOBILE-CN China Mobile Communications Grou 8151 7209 6425 UNINET, MX 22773 3347 3170 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2915 2725 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 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 /16:7649 /17:3475 /18:4123 /19:7576 /20:13112 /21:15902 /22:28520 /23:29655 /24:168716 /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 3886 7209 UNINET, MX 22773 2501 3347 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2382 14123 AMAZON-02, US 11830 1690 1986 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1037 1392 BRIGHTSPEED, US 36352 1003 2525 AS-COLOCROSSING, US 10620 968 1657 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 2:471 3:918 4:5 5:870 6:143 7:5 8:646 9:3 11:171 12:881 13:447 14:119 15:338 16:264 17:3 18:895 20:192 21:4 22:188 23:2680 24:670 27:26 29:19 31:504 32:12 34:12 35:173 36:3082 37:834 38:2684 39:635 40:93 41:1032 42:281 43:207 44:31 45:4354 46:1036 47:114 49:20 50:481 51:383 52:1425 54:352 55:1110 56:11 57:24 58:44 59:35 60:31 61:53 62:533 63:784 64:1954 65:1086 66:1587 67:1080 68:366 69:1234 70:446 71:183 72:688 74:962 75:321 76:249 77:412 78:370 79:244 80:322 81:382 82:719 83:218 84:322 85:457 86:263 87:234 88:303 89:723 90:109 91:985 92:696 93:449 94:973 95:666 96:264 97:53 98:493 99:216 100:40 101:23 102:399 103:1242 104:1673 105:219 106:54 107:1554 108:529 109:393 110:52 111:2250 112:875 113:39 114:50 115:16 116:54 117:1215 118:71 119:67 120:1504 121:47 122:61 123:132 124:76 125:26 126:1 128:543 129:397 130:655 131:1107 132:554 133:221 134:509 135:122 136:679 137:519 138:1045 139:443 140:691 141:380 142:987 143:850 144:409 145:154 146:639 147:493 148:1000 149:788 150:196 151:813 152:634 153:180 154:918 155:947 156:884 157:437 158:657 159:727 160:910 161:675 162:1024 163:452 164:785 165:680 166:819 167:708 168:1541 169:162 170:1861 171:100 172:1317 173:814 174:366 175:90 176:505 177:1052 178:607 179:922 180:41 181:2349 182:25 183:1166 184:450 185:3535 186:3141 187:1775 188:826 189:1925 190:6095 191:558 192:5236 193:1849 194:1217 195:911 196:924 197:1121 198:2735 199:5164 200:4517 201:3633 202:979 203:701 204:2223 205:1821 206:1589 207:1609 208:1572 209:2023 210:352 211:477 212:932 213:773 214:956 215:39 216:2581 217:479 218:595 219:19 220:29 221:452 222:24 223:1266 End of report