IPv4 R&E Routing Table Report 20:15 GMT Sat 06 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: 278322 Prefixes after maximum aggregation (per Origin AS): 118575 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 141431 Number of IPv4 prefixes with a valid ROA: 131359 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 146921 Total ASes present in the Internet Routing Table: 20581 Prefixes per ASN: 13.52 Origin-only ASes present in the Internet Routing Table: 17722 Origin ASes announcing only one prefix: 7902 Transit ASes present in the Internet Routing Table: 2859 Transit-only ASes present in the Internet Routing Table: 706 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: 336 Number of instances of unregistered ASNs: 365 Number of 32-bit ASNs allocated by the RIRs: 47334 Number of 32-bit ASNs visible in the Routing Table: 8288 Prefixes from 32-bit ASNs in the Routing Table: 33905 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: 1618010885 Equivalent to 96 /8s, 112 /16s and 227 /24s Percentage of available address space announced: 43.7 Percentage of allocated address space announced: 43.7 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: 88655 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35595 Total APNIC prefixes after maximum aggregation: 7358 APNIC Deaggregation factor: 4.84 Prefixes being announced from the APNIC address blocks: 34409 Unique aggregates announced from the APNIC address blocks: 7287 APNIC Region origin ASes present in the Internet Routing Table: 1190 APNIC Prefixes per ASN: 28.92 APNIC Region origin ASes announcing only one prefix: 472 APNIC Region transit ASes present in the Internet Routing Table: 194 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: 563 Number of APNIC addresses announced to Internet: 162502508 Equivalent to 9 /8s, 175 /16s and 151 /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: 126219 Total ARIN prefixes after maximum aggregation: 66106 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 124175 Unique aggregates announced from the ARIN address blocks: 67584 ARIN Region origin ASes present in the Internet Routing Table: 9192 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3819 ARIN Region transit ASes present in the Internet Routing Table: 855 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: 2160 Number of ARIN addresses announced to Internet: 1022842121 Equivalent to 60 /8s, 247 /16s and 85 /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: 47815 Total RIPE prefixes after maximum aggregation: 25677 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 50087 Unique aggregates announced from the RIPE address blocks: 36601 RIPE Region origin ASes present in the Internet Routing Table: 4431 RIPE Prefixes per ASN: 11.30 RIPE Region origin ASes announcing only one prefix: 1857 RIPE Region transit ASes present in the Internet Routing Table: 662 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1812 Number of RIPE addresses announced to Internet: 277340752 Equivalent to 16 /8s, 135 /16s and 226 /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: 57286 Total LACNIC prefixes after maximum aggregation: 16808 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 55410 Unique aggregates announced from the LACNIC address blocks: 25211 LACNIC Region origin ASes present in the Internet Routing Table: 4633 LACNIC Prefixes per ASN: 11.96 LACNIC Region origin ASes announcing only one prefix: 1641 LACNIC Region transit ASes present in the Internet Routing Table: 937 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: 3594 Number of LACNIC addresses announced to Internet: 108765760 Equivalent to 6 /8s, 123 /16s and 162 /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: 11071 Total AfriNIC prefixes after maximum aggregation: 2370 AfriNIC Deaggregation factor: 4.67 Prefixes being announced from the AfriNIC address blocks: 14151 Unique aggregates announced from the AfriNIC address blocks: 4659 AfriNIC Region origin ASes present in the Internet Routing Table: 295 AfriNIC Prefixes per ASN: 47.97 AfriNIC Region origin ASes announcing only one prefix: 113 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: 159 Number of AfriNIC addresses announced to Internet: 46450176 Equivalent to 2 /8s, 196 /16s and 198 /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 2153 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 551 898 140 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 14312 40861 5412 AMAZON-02, US 22773 3734 3050 309 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 2985 232 1742 USDA-1, US 36352 2513 206 1167 AS-COLOCROSSING, US 367 2350 2620 1101 DNIC-ASBLK-00306-00371, US 6167 1931 3987 518 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 1193 93 973 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 690 50 614 CDNEXT, GB 34984 642 108 503 TELLCOM-AS, TR 8376 592 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 7273 1964 783 UNINET, MX 11830 1989 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 1177 371 22 Telefonica del Peru S.A.A., PE 26615 1012 2487 55 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 804 278 29 Techtel LMDS Comunicaciones Interactivas 12252 695 164 24 America Movil Peru S.A.C., PE 22884 694 43 421 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 980 389 23 LINKdotNET-AS, EG 36935 638 522 42 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 571 82 3 KENET-AS, KE 36992 496 1096 222 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 14312 40861 5412 AMAZON-02, US 9808 12721 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7273 1964 783 UNINET, MX 22773 3734 3050 309 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 2985 232 1742 USDA-1, US 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2513 206 1167 AS-COLOCROSSING, US 367 2350 2620 1101 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 7273 6490 UNINET, MX 22773 3734 3425 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 1931 1413 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 /8:14 /9:11 /10:30 /11:51 /12:157 /13:214 /14:585 /15:1108 /16:7575 /17:3417 /18:4096 /19:7610 /20:13179 /21:15766 /22:28297 /23:29316 /24:166649 /25:67 /26:83 /27:53 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3929 7273 UNINET, MX 22773 2503 3734 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2411 14312 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1039 1394 BRIGHTSPEED, US 36352 998 2513 AS-COLOCROSSING, US 10620 968 1657 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 2:455 3:929 4:5 5:772 6:145 7:5 8:641 9:3 11:171 12:889 13:504 14:118 15:339 16:264 17:3 18:895 20:192 21:4 22:188 23:2556 24:688 27:32 29:19 31:478 32:12 34:12 35:179 36:3083 37:815 38:2464 39:635 40:93 41:1071 42:21 43:210 44:28 45:4354 46:978 47:118 49:21 50:475 51:383 52:1437 54:354 55:1107 56:11 57:24 58:17 59:33 60:31 61:53 62:519 63:774 64:1947 65:1094 66:1579 67:1074 68:361 69:1219 70:446 71:184 72:700 74:955 75:321 76:250 77:428 78:334 79:232 80:298 81:365 82:705 83:209 84:307 85:556 86:249 87:211 88:305 89:687 90:105 91:932 92:682 93:438 94:951 95:644 96:256 97:53 98:490 99:227 100:28 101:23 102:385 103:1218 104:1674 105:188 106:40 107:1549 108:525 109:381 110:52 111:2249 112:865 113:30 114:51 115:16 116:53 117:1214 118:70 119:68 120:1504 121:44 122:60 123:132 124:76 125:24 126:1 128:552 129:398 130:632 131:1092 132:569 133:221 134:478 135:122 136:685 137:494 138:1031 139:435 140:690 141:359 142:980 143:842 144:400 145:153 146:666 147:479 148:1017 149:755 150:200 151:772 152:502 153:180 154:1103 155:910 156:1142 157:437 158:581 159:726 160:899 161:680 162:1012 163:448 164:754 165:629 166:810 167:703 168:1525 169:163 170:1895 171:100 172:1315 173:811 174:361 175:93 176:471 177:1014 178:586 179:936 180:38 181:2336 182:23 183:1166 184:451 185:3268 186:3178 187:1766 188:800 189:1937 190:6345 191:565 192:5151 193:1795 194:1135 195:919 196:756 197:1129 198:2714 199:5170 200:4437 201:3630 202:979 203:704 204:2197 205:1818 206:1594 207:1591 208:1555 209:1967 210:345 211:475 212:897 213:733 214:963 215:39 216:2495 217:465 218:596 219:18 220:32 221:452 222:24 223:1248 End of report