IPv4 R&E Routing Table Report 20:15 GMT Sat 19 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: 278443 Prefixes after maximum aggregation (per Origin AS): 120764 Deaggregation factor: 2.31 Unique aggregates announced (without unneeded subnets): 143454 Number of IPv4 prefixes with a valid ROA: 130521 Number of IPv4 prefixes with an invalid ROA: 208 Number of IPv4 prefixes with no ROA: 147714 Total ASes present in the Internet Routing Table: 20981 Prefixes per ASN: 13.27 Origin-only ASes present in the Internet Routing Table: 18047 Origin ASes announcing only one prefix: 8094 Transit ASes present in the Internet Routing Table: 2934 Transit-only ASes present in the Internet Routing Table: 721 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: 353 Number of instances of unregistered ASNs: 385 Number of 32-bit ASNs allocated by the RIRs: 46890 Number of 32-bit ASNs visible in the Routing Table: 8438 Prefixes from 32-bit ASNs in the Routing Table: 33260 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: 101 Number of addresses announced to Internet: 1642949637 Equivalent to 97 /8s, 237 /16s and 108 /24s Percentage of available address space announced: 44.4 Percentage of allocated address space announced: 44.4 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: 88372 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34713 Total APNIC prefixes after maximum aggregation: 7597 APNIC Deaggregation factor: 4.57 Prefixes being announced from the APNIC address blocks: 33610 Unique aggregates announced from the APNIC address blocks: 7991 APNIC Region origin ASes present in the Internet Routing Table: 1245 APNIC Prefixes per ASN: 27.00 APNIC Region origin ASes announcing only one prefix: 492 APNIC Region transit ASes present in the Internet Routing Table: 202 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 589 Number of APNIC addresses announced to Internet: 173178732 Equivalent to 10 /8s, 82 /16s and 127 /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: 126289 Total ARIN prefixes after maximum aggregation: 66511 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124854 Unique aggregates announced from the ARIN address blocks: 67990 ARIN Region origin ASes present in the Internet Routing Table: 9355 ARIN Prefixes per ASN: 13.35 ARIN Region origin ASes announcing only one prefix: 3893 ARIN Region transit ASes present in the Internet Routing Table: 883 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: 2203 Number of ARIN addresses announced to Internet: 1028366857 Equivalent to 61 /8s, 75 /16s and 162 /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: 49491 Total RIPE prefixes after maximum aggregation: 27267 RIPE Deaggregation factor: 1.82 Prefixes being announced from the RIPE address blocks: 51003 Unique aggregates announced from the RIPE address blocks: 37992 RIPE Region origin ASes present in the Internet Routing Table: 4636 RIPE Prefixes per ASN: 11.00 RIPE Region origin ASes announcing only one prefix: 1955 RIPE Region transit ASes present in the Internet Routing Table: 703 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: 1911 Number of RIPE addresses announced to Internet: 286652496 Equivalent to 17 /8s, 21 /16s and 248 /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: 56878 Total LACNIC prefixes after maximum aggregation: 16805 LACNIC Deaggregation factor: 3.38 Prefixes being announced from the LACNIC address blocks: 55212 Unique aggregates announced from the LACNIC address blocks: 25006 LACNIC Region origin ASes present in the Internet Routing Table: 4604 LACNIC Prefixes per ASN: 11.99 LACNIC Region origin ASes announcing only one prefix: 1647 LACNIC Region transit ASes present in the Internet Routing Table: 927 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: 3585 Number of LACNIC addresses announced to Internet: 109094976 Equivalent to 6 /8s, 128 /16s and 168 /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: 10719 Total AfriNIC prefixes after maximum aggregation: 2320 AfriNIC Deaggregation factor: 4.62 Prefixes being announced from the AfriNIC address blocks: 13663 Unique aggregates announced from the AfriNIC address blocks: 4376 AfriNIC Region origin ASes present in the Internet Routing Table: 286 AfriNIC Prefixes per ASN: 47.77 AfriNIC Region origin ASes announcing only one prefix: 107 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: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 150 Number of AfriNIC addresses announced to Internet: 45539840 Equivalent to 2 /8s, 182 /16s and 226 /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 11632 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati 56047 1629 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2169 463 SINET-AS Research Organization of Informa 45102 536 884 140 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 132525 456 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 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 13688 40974 5278 AMAZON-02, US 22773 3337 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54766 2477 DNIC-AS-00749, US 4155 2865 217 1732 USDA-1, US 36352 2546 209 1134 AS-COLOCROSSING, US 367 2484 3070 1163 DNIC-ASBLK-00306-00371, US 6167 1930 4018 516 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1670 22849 1258 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 1166 91 951 AKAMAI-ASN1, NL 3257 1047 2083 810 GTT-BACKBONE GTT, US 34984 925 116 596 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 25019 806 1301 130 SAUDINETSTC-AS, SA 8452 719 1841 16 TE-AS TE-AS, EG 212238 655 46 579 CDNEXT, GB 8376 571 52 23 Jordan Data Communications, JO 58224 567 385 417 TCI, IR 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 7485 2010 898 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1713 248 1233 Telmex Colombia S.A., CO 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1195 371 22 Telefonica del Peru S.A.A., PE 26615 1017 2487 55 TIM SA, BR 18881 886 1127 31 TELEFONICA BRASIL S.A, BR 11172 724 124 68 Alestra, S. de R.L. de C.V., MX 27651 650 92 46 ENTEL CHILE S.A., CL 28006 648 77 298 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 24835 1198 544 23 RAYA-AS, EG 29571 1157 101 66 ORANGE-COTE-IVOIRE, CI 37069 1101 1112 11 MOBINIL, EG 24863 977 388 22 LINKdotNET-AS, EG 36914 578 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36903 456 204 330 MT-MPLS, MA 36992 440 960 229 ETISALAT-MISR, EG 2018 375 318 69 TENET-1, ZA 36935 357 515 9 Vodafone-, EG 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 13688 40974 5278 AMAZON-02, US 9808 11632 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7485 2010 898 UNINET, MX 22773 3337 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54766 2477 DNIC-AS-00749, US 4155 2865 217 1732 USDA-1, US 56046 2677 811 188 CMNET-JIANGSU-AP China Mobile communicati 36352 2546 209 1134 AS-COLOCROSSING, US 367 2484 3070 1163 DNIC-ASBLK-00306-00371, US 11830 1987 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 11632 11517 CHINAMOBILE-CN China Mobile Communications Grou 8151 7485 6587 UNINET, MX 22773 3337 3174 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2677 2489 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1629 1579 CMNET-HUNAN-AP China Mobile communications corp 56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1930 1414 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 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, US 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 /12:159 /13:216 /14:591 /15:1117 /16:7743 /17:3487 /18:4200 /19:7769 /20:13350 /21:15866 /22:27959 /23:29391 /24:166253 /25:65 /26:82 /27:39 /28:18 /29:15 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4026 7485 UNINET, MX 22773 2493 3337 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2352 13688 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1028 1350 BRSPD-PUBLIC, US 36352 1015 2546 AS-COLOCROSSING, US 10620 995 1713 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) ---------------------------------------------- 1:35 2:444 3:850 4:5 5:701 6:150 7:5 8:654 11:171 12:967 13:401 14:134 15:308 16:247 17:3 18:886 20:189 21:4 22:188 23:2659 24:686 27:43 29:19 31:518 32:18 33:1 34:10 35:175 36:2417 37:712 38:2627 39:556 40:84 41:1094 42:21 43:223 44:32 45:4389 46:993 47:110 49:26 50:412 51:387 52:1383 54:321 55:1113 56:11 57:24 58:18 59:35 60:29 61:63 62:525 63:786 64:1945 65:1134 66:1614 67:1095 68:371 69:1278 70:459 71:190 72:711 74:967 75:319 76:245 77:439 78:364 79:237 80:286 81:353 82:729 83:226 84:361 85:478 86:246 87:218 88:303 89:714 90:107 91:937 92:661 93:483 94:979 95:743 96:273 97:53 98:508 99:193 100:40 101:66 102:391 103:1311 104:1699 105:178 106:40 107:1530 108:440 109:432 110:44 111:1978 112:639 113:38 114:65 115:25 116:56 117:1100 118:69 119:82 120:1440 121:50 122:70 123:131 124:65 125:25 126:1 128:527 129:351 130:678 131:1017 132:560 133:212 134:474 135:127 136:675 137:533 138:1039 139:441 140:775 141:367 142:1023 143:809 144:439 145:118 146:680 147:519 148:1005 149:695 150:178 151:812 152:624 153:131 154:1204 155:908 156:1006 157:406 158:567 159:761 160:855 161:684 162:1062 163:445 164:723 165:578 166:814 167:700 168:1571 169:167 170:1761 171:111 172:1349 173:838 174:361 175:84 176:778 177:1069 178:484 179:876 180:41 181:2274 182:47 183:1059 184:459 185:3464 186:2866 187:1710 188:811 189:1994 190:6007 191:550 192:5285 193:1824 194:1237 195:941 196:711 197:1178 198:2757 199:5057 200:4698 201:3862 202:1001 203:726 204:2287 205:1846 206:1549 207:1616 208:1524 209:2021 210:362 211:465 212:1014 213:785 214:938 215:35 216:2567 217:445 218:550 219:18 220:36 221:455 222:24 223:1100 End of report