IPv4 R&E Routing Table Report 20:15 GMT Wed 27 Aug, 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: 281185 Prefixes after maximum aggregation (per Origin AS): 120651 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143596 Number of IPv4 prefixes with a valid ROA: 132735 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 148409 Total ASes present in the Internet Routing Table: 20860 Prefixes per ASN: 13.48 Origin-only ASes present in the Internet Routing Table: 17956 Origin ASes announcing only one prefix: 8025 Transit ASes present in the Internet Routing Table: 2904 Transit-only ASes present in the Internet Routing Table: 711 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: 343 Number of instances of unregistered ASNs: 372 Number of 32-bit ASNs allocated by the RIRs: 47277 Number of 32-bit ASNs visible in the Routing Table: 8354 Prefixes from 32-bit ASNs in the Routing Table: 34069 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: 101 Number of addresses announced to Internet: 1628484101 Equivalent to 97 /8s, 16 /16s and 178 /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: 90005 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35975 Total APNIC prefixes after maximum aggregation: 7395 APNIC Deaggregation factor: 4.86 Prefixes being announced from the APNIC address blocks: 34955 Unique aggregates announced from the APNIC address blocks: 7482 APNIC Region origin ASes present in the Internet Routing Table: 1196 APNIC Prefixes per ASN: 29.23 APNIC Region origin ASes announcing only one prefix: 467 APNIC Region transit ASes present in the Internet Routing Table: 189 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: 556 Number of APNIC addresses announced to Internet: 163396460 Equivalent to 9 /8s, 189 /16s and 59 /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: 126678 Total ARIN prefixes after maximum aggregation: 66716 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125229 Unique aggregates announced from the ARIN address blocks: 68649 ARIN Region origin ASes present in the Internet Routing Table: 9252 ARIN Prefixes per ASN: 13.54 ARIN Region origin ASes announcing only one prefix: 3843 ARIN Region transit ASes present in the Internet Routing Table: 864 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: 2180 Number of ARIN addresses announced to Internet: 1023600649 Equivalent to 61 /8s, 2 /16s and 232 /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: 50150 Total RIPE prefixes after maximum aggregation: 27060 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52290 Unique aggregates announced from the RIPE address blocks: 38169 RIPE Region origin ASes present in the Internet Routing Table: 4747 RIPE Prefixes per ASN: 11.02 RIPE Region origin ASes announcing only one prefix: 1996 RIPE Region transit ASes present in the Internet Routing Table: 719 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: 1994 Number of RIPE addresses announced to Internet: 284004688 Equivalent to 16 /8s, 237 /16s and 145 /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: 56889 Total LACNIC prefixes after maximum aggregation: 16783 LACNIC Deaggregation factor: 3.39 Prefixes being announced from the LACNIC address blocks: 54988 Unique aggregates announced from the LACNIC address blocks: 25011 LACNIC Region origin ASes present in the Internet Routing Table: 4500 LACNIC Prefixes per ASN: 12.22 LACNIC Region origin ASes announcing only one prefix: 1599 LACNIC Region transit ASes present in the Internet Routing Table: 909 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: 3448 Number of LACNIC addresses announced to Internet: 108674112 Equivalent to 6 /8s, 122 /16s and 60 /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: 11150 Total AfriNIC prefixes after maximum aggregation: 2438 AfriNIC Deaggregation factor: 4.57 Prefixes being announced from the AfriNIC address blocks: 13622 Unique aggregates announced from the AfriNIC address blocks: 4189 AfriNIC Region origin ASes present in the Internet Routing Table: 318 AfriNIC Prefixes per ASN: 42.84 AfriNIC Region origin ASes announcing only one prefix: 120 AfriNIC Region transit ASes present in the Internet Routing Table: 83 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 176 Number of AfriNIC addresses announced to Internet: 48695808 Equivalent to 2 /8s, 231 /16s and 10 /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 12726 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2910 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 827 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 610 2169 463 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 14018 40855 5391 AMAZON-02, US 22773 3350 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2930 229 1746 USDA-1, US 36352 2514 207 1166 AS-COLOCROSSING, US 367 2394 2768 1118 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 1504 22795 1135 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 669 49 597 CDNEXT, GB 34984 644 96 501 TELLCOM-AS, TR 8376 595 53 26 Jordan Data Communications, JO 8452 574 1841 16 TE-AS TE-AS, EG 51167 566 113 248 CONTABO, DE 35819 520 516 55 MOBILY-AS Etihad Etisalat Company Mobily, 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 7194 1948 780 UNINET, MX 11830 1982 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1181 371 22 Telefonica del Peru S.A.A., PE 26615 1009 2487 55 TIM SA, BR 18881 892 1127 31 TELEFONICA BRASIL S.A, BR 11664 811 278 29 Techtel LMDS Comunicaciones Interactivas 22884 696 44 424 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 1280 572 23 RAYA-AS, EG 29571 1151 93 59 ORANGE-COTE-IVOIRE, CI 24863 957 389 23 LINKdotNET-AS, EG 37069 660 1096 13 MOBINIL, EG 36935 597 518 28 Vodafone-, EG 36914 577 82 3 KENET-AS, KE 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36903 548 242 359 MT-MPLS, MA 36992 435 1038 212 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 14018 40855 5391 AMAZON-02, US 9808 12726 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7194 1948 780 UNINET, MX 22773 3350 3018 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2930 229 1746 USDA-1, US 56046 2910 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2514 207 1166 AS-COLOCROSSING, US 367 2394 2768 1118 DNIC-ASBLK-00306-00371, US 11830 1982 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 12726 12612 CHINAMOBILE-CN China Mobile Communications Grou 8151 7194 6414 UNINET, MX 22773 3350 3173 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2910 2720 CMNET-JIANGSU-AP China Mobile communications co 11830 1982 1918 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 /17:3476 /18:4108 /19:7568 /20:12996 /21:15836 /22:28495 /23:29527 /24:169094 /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 3880 7194 UNINET, MX 22773 2504 3350 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2409 14018 AMAZON-02, US 11830 1686 1982 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1038 1393 BRIGHTSPEED, US 36352 1004 2514 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) ---------------------------------------------- 1:44 2:462 3:918 4:5 5:871 6:143 7:5 8:652 9:3 11:171 12:887 13:425 14:120 15:330 16:247 17:3 18:894 20:191 21:4 22:188 23:2655 24:667 27:26 29:19 31:524 32:12 34:10 35:174 36:3079 37:830 38:2681 39:634 40:91 41:1113 42:281 43:208 44:29 45:4272 46:1039 47:114 49:21 50:482 51:383 52:1393 54:335 55:1102 56:11 57:24 58:44 59:34 60:31 61:53 62:533 63:783 64:1959 65:1097 66:1588 67:1083 68:367 69:1234 70:446 71:184 72:691 74:966 75:322 76:250 77:429 78:364 79:242 80:319 81:385 82:717 83:221 84:323 85:457 86:262 87:226 88:303 89:842 90:109 91:990 92:699 93:456 94:977 95:706 96:264 97:54 98:497 99:217 100:40 101:20 102:434 103:1228 104:1707 105:210 106:54 107:1549 108:536 109:394 110:52 111:2250 112:874 113:39 114:50 115:18 116:49 117:1217 118:68 119:65 120:1504 121:45 122:61 123:130 124:65 125:25 126:1 128:544 129:397 130:668 131:1011 132:570 133:221 134:508 135:121 136:682 137:519 138:1027 139:448 140:691 141:474 142:987 143:850 144:413 145:136 146:653 147:490 148:1007 149:773 150:197 151:836 152:628 153:180 154:956 155:951 156:863 157:418 158:666 159:757 160:912 161:690 162:1019 163:451 164:757 165:686 166:820 167:709 168:1564 169:163 170:1870 171:102 172:1313 173:815 174:366 175:85 176:505 177:1000 178:604 179:935 180:43 181:2320 182:24 183:1166 184:450 185:3580 186:3140 187:1814 188:832 189:1902 190:6009 191:552 192:5238 193:1882 194:1231 195:1007 196:940 197:1147 198:2745 199:5136 200:4519 201:3654 202:981 203:706 204:2209 205:1825 206:1594 207:1617 208:1578 209:1992 210:352 211:477 212:1004 213:797 214:956 215:39 216:2591 217:469 218:594 219:19 220:32 221:452 222:24 223:1266 End of report