IPv4 R&E Routing Table Report 20:15 GMT Wed 28 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: 287878 Prefixes after maximum aggregation (per Origin AS): 118201 Deaggregation factor: 2.44 Unique aggregates announced (without unneeded subnets): 148434 Number of IPv4 prefixes with a valid ROA: 145932 Number of IPv4 prefixes with an invalid ROA: 212 Number of IPv4 prefixes with no ROA: 141734 Total ASes present in the Internet Routing Table: 20469 Prefixes per ASN: 14.06 Origin-only ASes present in the Internet Routing Table: 17637 Origin ASes announcing only one prefix: 7959 Transit ASes present in the Internet Routing Table: 2832 Transit-only ASes present in the Internet Routing Table: 730 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: 33 Max AS path prepend of ASN ( 37133) 26 Prefixes from unregistered ASNs in the Routing Table: 240 Number of instances of unregistered ASNs: 269 Number of 32-bit ASNs allocated by the RIRs: 48515 Number of 32-bit ASNs visible in the Routing Table: 8310 Prefixes from 32-bit ASNs in the Routing Table: 34216 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: 95 Number of addresses announced to Internet: 1612180421 Equivalent to 96 /8s, 23 /16s and 235 /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: 92453 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 43477 Total APNIC prefixes after maximum aggregation: 8976 APNIC Deaggregation factor: 4.84 Prefixes being announced from the APNIC address blocks: 40157 Unique aggregates announced from the APNIC address blocks: 9178 APNIC Region origin ASes present in the Internet Routing Table: 1327 APNIC Prefixes per ASN: 30.26 APNIC Region origin ASes announcing only one prefix: 562 APNIC Region transit ASes present in the Internet Routing Table: 227 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: 653 Number of APNIC addresses announced to Internet: 171146604 Equivalent to 10 /8s, 51 /16s and 125 /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: 126624 Total ARIN prefixes after maximum aggregation: 64700 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 124146 Unique aggregates announced from the ARIN address blocks: 70485 ARIN Region origin ASes present in the Internet Routing Table: 9102 ARIN Prefixes per ASN: 13.64 ARIN Region origin ASes announcing only one prefix: 3780 ARIN Region transit ASes present in the Internet Routing Table: 846 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: 2182 Number of ARIN addresses announced to Internet: 1008143913 Equivalent to 60 /8s, 23 /16s and 14 /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: 51045 Total RIPE prefixes after maximum aggregation: 25917 RIPE Deaggregation factor: 1.97 Prefixes being announced from the RIPE address blocks: 53770 Unique aggregates announced from the RIPE address blocks: 37295 RIPE Region origin ASes present in the Internet Routing Table: 4491 RIPE Prefixes per ASN: 11.97 RIPE Region origin ASes announcing only one prefix: 1932 RIPE Region transit ASes present in the Internet Routing Table: 683 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: 1904 Number of RIPE addresses announced to Internet: 280423632 Equivalent to 16 /8s, 182 /16s and 236 /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: 55837 Total LACNIC prefixes after maximum aggregation: 16060 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 53702 Unique aggregates announced from the LACNIC address blocks: 23908 LACNIC Region origin ASes present in the Internet Routing Table: 4403 LACNIC Prefixes per ASN: 12.20 LACNIC Region origin ASes announcing only one prefix: 1571 LACNIC Region transit ASes present in the Internet Routing Table: 864 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: 3406 Number of LACNIC addresses announced to Internet: 106363744 Equivalent to 6 /8s, 86 /16s and 251 /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: 10655 Total AfriNIC prefixes after maximum aggregation: 2358 AfriNIC Deaggregation factor: 4.52 Prefixes being announced from the AfriNIC address blocks: 16008 Unique aggregates announced from the AfriNIC address blocks: 7483 AfriNIC Region origin ASes present in the Internet Routing Table: 306 AfriNIC Prefixes per ASN: 52.31 AfriNIC Region origin ASes announcing only one prefix: 114 AfriNIC Region transit ASes present in the Internet Routing Table: 85 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 165 Number of AfriNIC addresses announced to Internet: 45960960 Equivalent to 2 /8s, 189 /16s and 79 /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 13360 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3357 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2207 139 498 LCS-AS-AP LARUS Limited, HK 56041 1765 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1712 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1057 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 908 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 900 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 771 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 678 1167 157 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 14023 38904 5450 AMAZON-02 - Amazon.com, Inc., US 22773 4777 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 749 3142 54729 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 1709 1495 784 DNIC-ASBLK-00306-00371 - United States De 209 1639 4882 263 CENTURYLINK-US-LEGACY-QWEST - CenturyLink 19901 1484 732 696 BRIGHTSPEED - Brightspeed, US 20057 1444 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 1245 95 1014 AKAMAI-ASN1, NL 25019 1147 1335 139 SAUDINETSTC-AS, SA 34984 972 148 730 TELLCOM-AS, TR 8452 901 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 552 53 25 Jordan Data Communications, JO 5511 529 98 449 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 7293 1938 784 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1519 211 1131 Telmex Colombia S.A., CO 11664 1405 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 1011 2486 56 TIM SA, BR 18881 914 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 948 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 558 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 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 14023 38904 5450 AMAZON-02 - Amazon.com, Inc., US 9808 13360 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7293 1938 784 UNINET, MX 39891 4901 302 71 ALJAWWALSTC-AS, SA 22773 4777 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 56046 3357 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3142 54729 2393 DNIC-AS-00749 - United States Department 36352 2581 212 1012 AS-COLOCROSSING - HostPapa, US 17561 2207 139 498 LCS-AS-AP LARUS Limited, HK 11830 1992 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 13360 13240 CHINAMOBILE-CN China Mobile Communications Grou 8151 7293 6509 UNINET, MX 39891 4901 4830 ALJAWWALSTC-AS, SA 22773 4777 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 56046 3357 3162 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 17561 2207 1709 LCS-AS-AP LARUS Limited, HK 11776 1904 1691 ATLANTICBB-JOHNSTOWN - Breezeline, US 56041 1765 1686 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1712 1662 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 /12:160 /13:213 /14:575 /15:1065 /16:7485 /17:3475 /18:4152 /19:7637 /20:13239 /21:16155 /22:28147 /23:29568 /24:175665 /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 4007 7293 UNINET, MX 39891 3651 4901 ALJAWWALSTC-AS, SA 22773 3050 4777 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2476 14023 AMAZON-02 - Amazon.com, Inc., US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 36352 1094 2581 AS-COLOCROSSING - HostPapa, US 11664 1087 1405 Techtel LMDS Comunicaciones Interactivas S.A., AR 19901 1051 1484 BRIGHTSPEED - Brightspeed, US 209 953 1639 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US 10620 931 1519 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 3:973 4:5 5:1144 6:171 7:5 8:637 9:5 11:172 12:877 13:560 14:177 15:363 16:154 17:3 18:911 20:204 21:4 22:188 23:2878 24:661 27:47 29:19 31:512 32:13 34:7 35:182 36:3330 37:645 38:2330 39:838 40:251 41:1127 42:22 43:204 44:29 45:4430 46:932 47:166 48:20 49:21 50:482 51:522 52:1078 54:231 55:1123 56:11 57:33 58:44 59:42 60:74 61:58 62:604 63:722 64:2175 65:985 66:2409 67:1091 68:490 69:1210 70:439 71:155 72:707 74:983 75:296 76:238 77:392 78:573 79:240 80:343 81:423 82:822 83:208 84:342 85:638 86:239 87:202 88:280 89:705 90:104 91:923 92:683 93:896 94:978 95:1317 96:284 97:45 98:390 99:270 100:22 101:22 102:549 103:1286 104:1636 105:133 106:3 107:1703 108:518 109:351 110:104 111:2764 112:1303 113:33 114:34 115:54 116:57 117:1522 118:69 119:90 120:2010 121:36 122:78 123:125 124:68 125:50 128:626 129:368 130:718 131:1177 132:553 133:218 134:498 135:137 136:736 137:613 138:1016 139:448 140:756 141:515 142:1463 143:851 144:485 145:200 146:692 147:469 148:1007 149:732 150:230 151:890 152:730 153:273 154:2361 155:1023 156:2040 157:475 158:657 159:837 160:637 161:722 162:979 163:420 164:734 165:630 166:561 167:708 168:1469 169:205 170:1796 171:102 172:1592 173:781 174:271 175:100 176:652 177:961 178:647 179:866 180:45 181:2542 182:23 183:1690 184:436 185:3347 186:3425 187:1713 188:1052 189:1957 190:5927 191:520 192:5088 193:1698 194:1120 195:947 196:680 197:1103 198:2666 199:2447 200:4459 201:3602 202:1105 203:823 204:2194 205:1799 206:1481 207:1710 208:1691 209:1964 210:443 211:517 212:1060 213:873 214:988 215:43 216:2436 217:549 218:652 219:29 220:82 221:536 222:37 223:1669 End of report