IPv4 R&E Routing Table Report 20:15 GMT Sat 31 Jan, 2026 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: 287901 Prefixes after maximum aggregation (per Origin AS): 117933 Deaggregation factor: 2.44 Unique aggregates announced (without unneeded subnets): 148125 Number of IPv4 prefixes with a valid ROA: 145981 Number of IPv4 prefixes with an invalid ROA: 211 Number of IPv4 prefixes with no ROA: 141709 Total ASes present in the Internet Routing Table: 20294 Prefixes per ASN: 14.19 Origin-only ASes present in the Internet Routing Table: 17495 Origin ASes announcing only one prefix: 7886 Transit ASes present in the Internet Routing Table: 2799 Transit-only ASes present in the Internet Routing Table: 702 Paths with bogon ASNs present in the IPv4 Routing Table: 9 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 31 Max AS path prepend of ASN (267205) 24 Prefixes from unregistered ASNs in the Routing Table: 241 Number of instances of unregistered ASNs: 270 Number of 32-bit ASNs allocated by the RIRs: 48540 Number of 32-bit ASNs visible in the Routing Table: 8219 Prefixes from 32-bit ASNs in the Routing Table: 34061 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 93 Number of addresses announced to Internet: 1611737285 Equivalent to 96 /8s, 17 /16s and 40 /24s Percentage of available address space announced: 43.5 Percentage of allocated address space announced: 43.5 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: 92606 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 43366 Total APNIC prefixes after maximum aggregation: 8883 APNIC Deaggregation factor: 4.88 Prefixes being announced from the APNIC address blocks: 40057 Unique aggregates announced from the APNIC address blocks: 9067 APNIC Region origin ASes present in the Internet Routing Table: 1287 APNIC Prefixes per ASN: 31.12 APNIC Region origin ASes announcing only one prefix: 553 APNIC Region transit ASes present in the Internet Routing Table: 224 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 608 Number of APNIC addresses announced to Internet: 170504300 Equivalent to 10 /8s, 41 /16s and 176 /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: 126647 Total ARIN prefixes after maximum aggregation: 64745 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 124173 Unique aggregates announced from the ARIN address blocks: 70606 ARIN Region origin ASes present in the Internet Routing Table: 9094 ARIN Prefixes per ASN: 13.65 ARIN Region origin ASes announcing only one prefix: 3771 ARIN Region transit ASes present in the Internet Routing Table: 848 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2180 Number of ARIN addresses announced to Internet: 1008175657 Equivalent to 60 /8s, 23 /16s and 138 /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: 51229 Total RIPE prefixes after maximum aggregation: 25841 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 53948 Unique aggregates announced from the RIPE address blocks: 37231 RIPE Region origin ASes present in the Internet Routing Table: 4410 RIPE Prefixes per ASN: 12.23 RIPE Region origin ASes announcing only one prefix: 1871 RIPE Region transit ASes present in the Internet Routing Table: 670 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1866 Number of RIPE addresses announced to Internet: 280712400 Equivalent to 16 /8s, 187 /16s and 84 /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: 55835 Total LACNIC prefixes after maximum aggregation: 15954 LACNIC Deaggregation factor: 3.50 Prefixes being announced from the LACNIC address blocks: 53683 Unique aggregates announced from the LACNIC address blocks: 23735 LACNIC Region origin ASes present in the Internet Routing Table: 4393 LACNIC Prefixes per ASN: 12.22 LACNIC Region origin ASes announcing only one prefix: 1582 LACNIC Region transit ASes present in the Internet Routing Table: 857 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: 3405 Number of LACNIC addresses announced to Internet: 106336352 Equivalent to 6 /8s, 86 /16s and 144 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 10583 Total AfriNIC prefixes after maximum aggregation: 2319 AfriNIC Deaggregation factor: 4.56 Prefixes being announced from the AfriNIC address blocks: 15947 Unique aggregates announced from the AfriNIC address blocks: 7403 AfriNIC Region origin ASes present in the Internet Routing Table: 297 AfriNIC Prefixes per ASN: 53.69 AfriNIC Region origin ASes announcing only one prefix: 109 AfriNIC Region transit ASes present in the Internet Routing Table: 82 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 160 Number of AfriNIC addresses announced to Internet: 45867520 Equivalent to 2 /8s, 187 /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 13435 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3361 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2198 138 501 LCS-AS-AP LARUS Limited, HK 56041 1765 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1716 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1057 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 909 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 902 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 772 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 689 1168 151 ALIBABA-CN-NET Alibaba US Technology Co., 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 14090 38819 5515 AMAZON-02 - Amazon.com, Inc., US 22773 4777 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 749 3142 54728 2393 DNIC-AS-00749 - United States Department 36352 2581 212 1012 AS-COLOCROSSING - HostPapa, US 6167 1974 4173 531 CELLCO-PART - Verizon Business, US 11776 1904 259 213 ATLANTICBB-JOHNSTOWN - Breezeline, US 367 1700 1489 780 DNIC-ASBLK-00306-00371 - United States De 209 1637 4882 262 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 19901 1479 732 687 BRIGHTSPEED - Brightspeed, US 20057 1445 1017 112 ATT-MOBILITY-LLC-AS20057 - AT&T Enterpris 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 4901 302 71 ALJAWWALSTC-AS, SA 20940 1242 95 1012 AKAMAI-ASN1, NL 25019 1149 1335 138 SAUDINETSTC-AS, SA 34984 978 150 735 TELLCOM-AS, TR 8452 903 1841 17 TE-AS TE-AS, EG 3215 900 4820 300 France Telecom - Orange, FR 212238 701 49 616 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 554 53 25 Jordan Data Communications, JO 5511 530 98 450 OPENTRANSIT, FR 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 7252 1918 799 UNINET, MX 11830 1990 369 65 Instituto Costarricense de Electricidad y 10620 1520 211 1131 Telmex Colombia S.A., CO 11664 1410 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1256 371 22 INTEGRATEL PERU S.A.A., PE 26615 1013 2486 57 TIM SA, BR 18881 915 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 12252 682 164 24 America Movil Peru S.A.C., PE 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 1451 463 90 RAYA-AS, EG 37069 1095 1100 11 MOBINIL, EG 24863 947 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 566 82 3 KENET-AS, KE 36935 510 515 10 Vodafone-, EG 36903 503 233 345 MT-MPLS, MA 29571 422 78 20 ORANGE-COTE-IVOIRE, CI 36992 385 870 245 ETISALAT-MISR, EG 2018 374 318 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 14090 38819 5515 AMAZON-02 - Amazon.com, Inc., US 9808 13435 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7252 1918 799 UNINET, MX 39891 4901 302 71 ALJAWWALSTC-AS, SA 22773 4777 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 56046 3361 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3142 54728 2393 DNIC-AS-00749 - United States Department 36352 2581 212 1012 AS-COLOCROSSING - HostPapa, US 17561 2198 138 501 LCS-AS-AP LARUS Limited, HK 11830 1990 369 65 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 13435 13315 CHINAMOBILE-CN China Mobile Communications Grou 8151 7252 6453 UNINET, MX 39891 4901 4830 ALJAWWALSTC-AS, SA 22773 4777 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 56046 3361 3166 CMNET-JIANGSU-AP China Mobile communications co 11830 1990 1925 Instituto Costarricense de Electricidad y Telec 17561 2198 1697 LCS-AS-AP LARUS Limited, HK 11776 1904 1691 ATLANTICBB-JOHNSTOWN - Breezeline, US 56041 1765 1686 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1716 1666 CMNET-HUNAN-AP China Mobile communications corp 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 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4 - AT&T En 33684 UNALLOCATED 12.37.144.0/24 7018 ATT-INTERNET4 - AT&T En 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4 - AT&T En 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4 - AT&T En 26295 UNALLOCATED 12.110.210.0/23 7018 ATT-INTERNET4 - AT&T En 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 - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.155.185.0/24 Origin: 401541 OSIE - Osie, US 23.155.185.0/24 Transit: 397423 TIER-NET - Tier.Net Technologies LLC, US 23.157.217.0/24 Origin: 401541 OSIE - Osie, US 23.157.217.0/24 Transit: 397423 TIER-NET - Tier.Net Technologies LLC, 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 /11:52 /12:159 /13:213 /14:575 /15:1064 /16:7483 /17:3468 /18:4164 /19:7636 /20:13285 /21:16168 /22:28481 /23:29556 /24:175307 /25:61 /26:83 /27:50 /28:18 /29:7 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3980 7252 UNINET, MX 39891 3651 4901 ALJAWWALSTC-AS, SA 22773 3050 4777 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2509 14090 AMAZON-02 - Amazon.com, Inc., US 11830 1695 1990 Instituto Costarricense de Electricidad y Telecom., CR 36352 1094 2581 AS-COLOCROSSING - HostPapa, US 11664 1092 1410 Techtel LMDS Comunicaciones Interactivas S.A., AR 19901 1045 1479 BRIGHTSPEED - Brightspeed, US 209 951 1637 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US 10620 932 1520 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:72 2:462 3:978 4:5 5:1152 6:172 7:5 8:639 9:6 11:172 12:880 13:561 14:179 15:362 16:154 17:3 18:911 20:204 21:4 22:188 23:2870 24:665 27:47 29:19 31:510 32:13 34:7 35:182 36:3333 37:633 38:2332 39:841 40:250 41:1127 42:22 43:205 44:28 45:4405 46:926 47:166 48:20 49:21 50:483 51:522 52:1078 54:231 55:1120 56:11 57:32 58:44 59:42 60:73 61:58 62:595 63:723 64:2176 65:975 66:2392 67:1088 68:493 69:1215 70:435 71:154 72:708 74:977 75:292 76:225 77:400 78:572 79:228 80:353 81:425 82:820 83:211 84:341 85:644 86:238 87:204 88:281 89:701 90:104 91:885 92:683 93:883 94:982 95:1306 96:283 97:45 98:387 99:270 100:22 101:19 102:522 103:1227 104:1640 105:123 106:3 107:1739 108:517 109:355 110:100 111:2771 112:1302 113:34 114:34 115:54 116:57 117:1557 118:62 119:88 120:2011 121:36 122:72 123:124 124:68 125:48 128:616 129:367 130:705 131:1181 132:544 133:218 134:504 135:136 136:738 137:605 138:983 139:451 140:757 141:516 142:1462 143:847 144:485 145:199 146:688 147:466 148:970 149:740 150:229 151:897 152:698 153:272 154:2367 155:1019 156:2035 157:471 158:647 159:834 160:635 161:720 162:987 163:420 164:733 165:616 166:560 167:708 168:1459 169:209 170:1814 171:102 172:1582 173:794 174:271 175:94 176:652 177:915 178:649 179:860 180:51 181:2554 182:22 183:1694 184:436 185:3324 186:3449 187:1688 188:1058 189:1968 190:5960 191:528 192:5123 193:1683 194:1105 195:904 196:700 197:1094 198:2668 199:2452 200:4447 201:3584 202:1104 203:821 204:2191 205:1807 206:1472 207:1709 208:1680 209:1973 210:443 211:518 212:1047 213:880 214:989 215:43 216:2452 217:547 218:653 219:29 220:82 221:535 222:37 223:1672 End of report