IPv4 R&E Routing Table Report 23:00 GMT Sun 10 May, 2026 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 1044017 Prefixes after maximum aggregation (per Origin AS): 401022 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 516928 Number of IPv4 prefixes with a valid ROA: 642278 Number of IPv4 prefixes with an invalid ROA: 530 Number of IPv4 prefixes with no ROA: 401209 Total ASes present in the Internet Routing Table: 78381 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 67188 Origin ASes announcing only one prefix: 27385 Transit ASes present in the Internet Routing Table: 11193 Transit-only ASes present in the Internet Routing Table: 590 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 1006 Number of instances of unregistered ASNs: 1036 Number of 32-bit ASNs allocated by the RIRs: 49723 Number of 32-bit ASNs visible in the Routing Table: 40553 Prefixes from 32-bit ASNs in the Routing Table: 229581 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 423 Number of addresses announced to Internet: 3102884864 Equivalent to 184 /8s, 242 /16s and 68 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 341036 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285226 Total APNIC prefixes after maximum aggregation: 82841 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 271660 Unique aggregates announced from the APNIC address blocks: 107923 APNIC Region origin ASes present in the Internet Routing Table: 15168 APNIC Prefixes per ASN: 17.91 APNIC Region origin ASes announcing only one prefix: 4596 APNIC Region transit ASes present in the Internet Routing Table: 2050 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10770 Number of APNIC addresses announced to Internet: 747730944 Equivalent to 44 /8s, 145 /16s and 120 /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: 301882 Total ARIN prefixes after maximum aggregation: 136433 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 301233 Unique aggregates announced from the ARIN address blocks: 147579 ARIN Region origin ASes present in the Internet Routing Table: 19409 ARIN Prefixes per ASN: 15.52 ARIN Region origin ASes announcing only one prefix: 7118 ARIN Region transit ASes present in the Internet Routing Table: 1894 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5566 Number of ARIN addresses announced to Internet: 1347627264 Equivalent to 80 /8s, 83 /16s and 41 /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, 393216-404380 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: 290080 Total RIPE prefixes after maximum aggregation: 143301 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 293216 Unique aggregates announced from the RIPE address blocks: 191385 RIPE Region origin ASes present in the Internet Routing Table: 29467 RIPE Prefixes per ASN: 9.95 RIPE Region origin ASes announcing only one prefix: 12214 RIPE Region transit ASes present in the Internet Routing Table: 4079 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 44 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13389 Number of RIPE addresses announced to Internet: 733337600 Equivalent to 43 /8s, 181 /16s and 216 /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: 128709 Total LACNIC prefixes after maximum aggregation: 30857 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 123108 Unique aggregates announced from the LACNIC address blocks: 50294 LACNIC Region origin ASes present in the Internet Routing Table: 11394 LACNIC Prefixes per ASN: 10.80 LACNIC Region origin ASes announcing only one prefix: 2725 LACNIC Region transit ASes present in the Internet Routing Table: 2585 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9441 Number of LACNIC addresses announced to Internet: 169748224 Equivalent to 10 /8s, 30 /16s and 39 /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: 37114 Total AfriNIC prefixes after maximum aggregation: 6974 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 54377 Unique aggregates announced from the AfriNIC address blocks: 19381 AfriNIC Region origin ASes present in the Internet Routing Table: 2020 AfriNIC Prefixes per ASN: 26.92 AfriNIC Region origin ASes announcing only one prefix: 732 AfriNIC Region transit ASes present in the Internet Routing Table: 382 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1387 Number of AfriNIC addresses announced to Internet: 104245504 Equivalent to 6 /8s, 54 /16s and 169 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13869 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4936 552 322 BBIL-AP BHARTI Airtel Ltd., IN 18403 4545 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4053 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3719 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3539 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3453 217 595 LCS-AS-AP LARUS Limited, HK 45899 3365 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2832 785 702 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14926 41296 5701 AMAZON-02 - Amazon.com, Inc., US 22773 4785 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4638 308 1055 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3718 1305 75 SHAW - Shaw Communications, CA 396982 3336 4865 505 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2917 222 905 AS-COLOCROSSING - HostPapa, US 7029 2649 2560 918 WINDSTREAM - Windstream Communications LL 30036 2576 354 547 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7185 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3896 358 2302 M247, RO 20940 3794 3389 109 AKAMAI-ASN1, NL 12389 3143 2321 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2769 202 2041 CDNEXT, GB 34984 2491 367 582 TELLCOM-AS, TR 8452 1725 1852 14 TE-AS TE-AS, EG 203020 1655 252 831 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12768 3266 636 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2416 506 350 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1375 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1226 379 23 INTEGRATEL PERU S.A.A., PE 22884 1073 70 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1073 2392 100 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 2027 649 36 RAYA-AS, EG 36992 1860 1533 334 ETISALAT-MISR, EG 24863 1271 389 16 LINKdotNET-AS, EG 36935 1251 521 43 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1070 70 18 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 328608 563 53 157 Africa-on-Cloud-AS, ZA 15399 551 57 57 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14926 41296 5701 AMAZON-02 - Amazon.com, Inc., US 9808 13869 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12768 3266 636 UNINET, MX 12479 7185 1711 149 UNI2-AS, ES 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4936 552 322 BBIL-AP BHARTI Airtel Ltd., IN 22773 4785 3116 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4638 308 1055 CABLEONE - CABLE ONE, INC., US 18403 4545 347 26 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13869 13748 CHINAMOBILE-CN China Mobile Communications Grou 8151 12768 12132 UNINET, MX 12479 7185 7036 UNI2-AS, ES 7545 5883 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4936 4614 BBIL-AP BHARTI Airtel Ltd., IN 18403 4545 4519 FPT-AS-AP FPT Telecom Company, VN 22773 4785 4420 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4053 4025 VIETEL-AS-AP Viettel Group, VN 7155 3870 3780 VIASAT-SP-BACKBONE - ViaSat,Inc., US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS 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: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.138.188.0/24 Origin: 401371 DEEP-TO-ONE-INC - Deep To One Inc, ZZ 23.138.188.0/24 Transit: 154309 INTELLIGENT1-AS-AP Intelligent Cloud Lim 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:14 /10:39 /11:95 /12:296 /13:581 /14:1186 /15:2096 /16:13579 /17:8245 /18:13272 /19:25403 /20:45694 /21:52329 /22:113532 /23:107769 /24:659871 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6975 12768 UNINET, MX 12479 6122 7185 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 11492 3505 4638 CABLEONE - CABLE ONE, INC., US 6327 3499 3718 SHAW - Shaw Communications, CA 22773 3057 4785 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2690 14926 AMAZON-02 - Amazon.com, Inc., US 10620 2233 3429 Telmex Colombia S.A., CO 30036 2232 2576 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2490 2:2015 3:1003 4:5 5:5162 6:200 7:6 8:1469 9:43 11:172 12:1170 13:705 14:2707 15:464 16:208 17:443 18:921 20:591 21:4 22:188 23:8299 24:2777 25:2 27:2800 28:1 29:19 31:3536 32:36 34:90 35:284 36:4763 37:4432 38:9655 39:1294 40:438 41:4542 42:2161 43:3174 44:450 45:19830 46:4891 47:439 48:127 49:2347 50:2001 51:691 52:1316 54:282 55:1017 56:11 57:322 58:2363 59:1381 60:1175 61:3179 62:3121 63:1686 64:6388 65:2145 66:6109 67:3269 68:1505 69:4215 70:1061 71:607 72:3181 74:3060 75:1501 76:596 77:2948 78:2033 79:1794 80:2352 81:2240 82:4157 83:1456 84:2150 85:3841 86:1091 87:2507 88:1335 89:4776 90:812 91:8464 92:2795 93:3035 94:4406 95:4740 96:1451 97:310 98:945 99:832 100:70 101:1625 102:4527 103:33028 104:5371 105:856 106:900 107:2940 108:1268 109:4249 110:2290 111:4130 112:3173 113:1975 114:2282 115:2304 116:2158 117:3490 118:3044 119:2078 120:2709 121:1542 122:2994 123:2288 124:1706 125:3033 126:126 128:1567 129:961 130:1643 131:2478 132:887 133:486 134:1689 135:606 136:1477 137:1360 138:3391 139:1620 140:1770 141:1745 142:2564 143:2048 144:1770 145:638 146:2184 147:2250 148:2806 149:3114 150:1375 151:2918 152:2561 153:1545 154:9557 155:2298 156:5005 157:2399 158:1577 159:2875 160:3837 161:1968 162:4070 163:2558 164:2453 165:2675 166:1272 167:2309 168:4022 169:863 170:5622 171:1142 172:4774 173:3445 174:890 175:1366 176:3947 177:4834 178:4409 179:2341 180:3186 181:4579 182:4030 183:2831 184:1998 185:21869 186:6119 187:5005 188:4588 189:4539 190:9808 191:1683 192:11488 193:9628 194:7882 195:5822 196:3357 197:3248 198:6115 199:6081 200:8124 201:6391 202:10682 203:10652 204:4756 205:3683 206:4401 207:3819 208:4350 209:5407 210:4736 211:2690 212:5081 213:4096 214:1039 215:47 216:7291 217:3605 218:1708 219:415 220:2191 221:1346 222:937 223:3446 End of report