IPv4 R&E Routing Table Report 20:15 GMT Mon 28 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: 279693 Prefixes after maximum aggregation (per Origin AS): 120617 Deaggregation factor: 2.32 Unique aggregates announced (without unneeded subnets): 143462 Number of IPv4 prefixes with a valid ROA: 130336 Number of IPv4 prefixes with an invalid ROA: 212 Number of IPv4 prefixes with no ROA: 149145 Total ASes present in the Internet Routing Table: 20881 Prefixes per ASN: 13.39 Origin-only ASes present in the Internet Routing Table: 17995 Origin ASes announcing only one prefix: 8083 Transit ASes present in the Internet Routing Table: 2886 Transit-only ASes present in the Internet Routing Table: 708 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: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 342 Number of instances of unregistered ASNs: 374 Number of 32-bit ASNs allocated by the RIRs: 46959 Number of 32-bit ASNs visible in the Routing Table: 8346 Prefixes from 32-bit ASNs in the Routing Table: 33737 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: 100 Number of addresses announced to Internet: 1643185413 Equivalent to 97 /8s, 241 /16s and 5 /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: 89049 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34895 Total APNIC prefixes after maximum aggregation: 7498 APNIC Deaggregation factor: 4.65 Prefixes being announced from the APNIC address blocks: 33869 Unique aggregates announced from the APNIC address blocks: 7803 APNIC Region origin ASes present in the Internet Routing Table: 1194 APNIC Prefixes per ASN: 28.37 APNIC Region origin ASes announcing only one prefix: 471 APNIC Region transit ASes present in the Internet Routing Table: 189 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: 555 Number of APNIC addresses announced to Internet: 173215852 Equivalent to 10 /8s, 83 /16s and 16 /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: 126319 Total ARIN prefixes after maximum aggregation: 66347 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124954 Unique aggregates announced from the ARIN address blocks: 67978 ARIN Region origin ASes present in the Internet Routing Table: 9344 ARIN Prefixes per ASN: 13.37 ARIN Region origin ASes announcing only one prefix: 3900 ARIN Region transit ASes present in the Internet Routing Table: 875 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: 2205 Number of ARIN addresses announced to Internet: 1027318281 Equivalent to 61 /8s, 59 /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: 51181 Total RIPE prefixes after maximum aggregation: 27541 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 52487 Unique aggregates announced from the RIPE address blocks: 38392 RIPE Region origin ASes present in the Internet Routing Table: 4695 RIPE Prefixes per ASN: 11.18 RIPE Region origin ASes announcing only one prefix: 1959 RIPE Region transit ASes present in the Internet Routing Table: 707 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1935 Number of RIPE addresses announced to Internet: 287502160 Equivalent to 17 /8s, 34 /16s and 239 /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: 55701 Total LACNIC prefixes after maximum aggregation: 16604 LACNIC Deaggregation factor: 3.35 Prefixes being announced from the LACNIC address blocks: 53955 Unique aggregates announced from the LACNIC address blocks: 24743 LACNIC Region origin ASes present in the Internet Routing Table: 4516 LACNIC Prefixes per ASN: 11.95 LACNIC Region origin ASes announcing only one prefix: 1643 LACNIC Region transit ASes present in the Internet Routing Table: 899 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: 3495 Number of LACNIC addresses announced to Internet: 108676160 Equivalent to 6 /8s, 122 /16s and 68 /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: 11255 Total AfriNIC prefixes after maximum aggregation: 2370 AfriNIC Deaggregation factor: 4.75 Prefixes being announced from the AfriNIC address blocks: 14328 Unique aggregates announced from the AfriNIC address blocks: 4450 AfriNIC Region origin ASes present in the Internet Routing Table: 292 AfriNIC Prefixes per ASN: 49.07 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 156 Number of AfriNIC addresses announced to Internet: 46351872 Equivalent to 2 /8s, 195 /16s and 70 /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 11873 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati 56041 1642 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1641 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2169 463 SINET-AS Research Organization of Informa 45102 532 883 137 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 132525 468 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 13690 40976 5289 AMAZON-02, US 22773 3338 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2885 219 1730 USDA-1, US 36352 2557 209 1144 AS-COLOCROSSING, US 367 2484 3042 1165 DNIC-ASBLK-00306-00371, US 6167 1937 4026 519 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1653 4889 266 CENTURYLINK-US-LEGACY-QWEST, US 7018 1645 22846 1237 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 1166 91 949 AKAMAI-ASN1, NL 3257 1051 2083 815 GTT-BACKBONE GTT, US 34984 926 116 597 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 8452 829 1841 16 TE-AS TE-AS, EG 25019 804 1301 130 SAUDINETSTC-AS, SA 212238 657 46 581 CDNEXT, GB 8376 565 52 24 Jordan Data Communications, JO 51167 564 113 248 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 6654 1869 887 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1688 242 1216 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1187 371 22 Telefonica del Peru S.A.A., PE 26615 1016 2487 55 TIM SA, BR 18881 884 1127 31 TELEFONICA BRASIL S.A, BR 27651 650 92 46 ENTEL CHILE S.A., CL 28006 643 76 296 CORPORACION NACIONAL DE TELECOMUNICACIONE 14117 621 116 15 Telefonica del Sur 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 1412 572 23 RAYA-AS, EG 29571 1167 99 104 ORANGE-COTE-IVOIRE, CI 24863 1049 388 19 LINKdotNET-AS, EG 37069 957 1112 11 MOBINIL, EG 36914 581 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36935 567 518 29 Vodafone-, EG 36992 498 1068 218 ETISALAT-MISR, EG 36903 456 204 330 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 13690 40976 5289 AMAZON-02, US 9808 11873 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 6654 1869 887 UNINET, MX 22773 3338 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3223 54766 2474 DNIC-AS-00749, US 4155 2885 219 1730 USDA-1, US 56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati 36352 2557 209 1144 AS-COLOCROSSING, US 367 2484 3042 1165 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 11873 11758 CHINAMOBILE-CN China Mobile Communications Grou 8151 6654 5767 UNINET, MX 22773 3338 3175 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2755 2566 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 1641 1591 CMNET-HUNAN-AP China Mobile communications corp 56041 1642 1564 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1937 1418 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 /14:592 /15:1117 /16:7752 /17:3486 /18:4276 /19:7738 /20:13241 /21:15934 /22:28761 /23:29092 /24:166987 /25:65 /26:81 /27:40 /28:18 /29:13 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3342 6654 UNINET, MX 22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2352 13690 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1025 1350 BRSPD-PUBLIC, US 36352 1016 2557 AS-COLOCROSSING, US 10620 994 1688 Telmex Colombia S.A., CO 209 962 1653 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) ---------------------------------------------- 1:28 2:445 3:851 4:5 5:805 6:145 7:5 8:655 11:171 12:962 13:407 14:112 15:309 16:247 17:3 18:890 20:190 21:4 22:188 23:2658 24:682 27:26 29:19 31:534 32:18 33:1 34:10 35:175 36:2637 37:780 38:2642 39:585 40:84 41:1102 42:21 43:233 44:30 45:4281 46:1010 47:111 49:25 50:481 51:387 52:1383 54:319 55:1106 56:11 57:21 58:18 59:39 60:31 61:60 62:519 63:778 64:1943 65:1125 66:1623 67:1095 68:371 69:1264 70:454 71:190 72:698 74:969 75:318 76:240 77:477 78:366 79:244 80:311 81:399 82:739 83:236 84:341 85:486 86:243 87:218 88:303 89:668 90:107 91:1004 92:690 93:484 94:1019 95:696 96:274 97:53 98:500 99:189 100:40 101:30 102:381 103:1275 104:1695 105:186 106:40 107:1532 108:520 109:443 110:44 111:2005 112:685 113:38 114:54 115:23 116:56 117:1138 118:73 119:85 120:1456 121:51 122:62 123:131 124:65 125:25 126:1 128:526 129:399 130:680 131:1033 132:557 133:212 134:472 135:126 136:680 137:526 138:1031 139:445 140:765 141:365 142:1051 143:827 144:438 145:122 146:683 147:513 148:1007 149:738 150:211 151:809 152:625 153:131 154:1187 155:907 156:958 157:408 158:575 159:768 160:855 161:690 162:1055 163:438 164:728 165:612 166:819 167:711 168:1534 169:163 170:1732 171:105 172:1333 173:840 174:361 175:83 176:804 177:1149 178:614 179:863 180:41 181:2254 182:30 183:1091 184:456 185:3522 186:2878 187:1464 188:864 189:1838 190:6018 191:558 192:5279 193:1886 194:1219 195:983 196:743 197:1190 198:2750 199:5093 200:4629 201:3724 202:984 203:701 204:2289 205:1841 206:1597 207:1627 208:1534 209:1998 210:357 211:467 212:1037 213:795 214:943 215:37 216:2605 217:461 218:560 219:18 220:32 221:461 222:24 223:1135 End of report