IPv4 R&E Routing Table Report 23:00 GMT Fri 08 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: 1044296 Prefixes after maximum aggregation (per Origin AS): 400917 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 517041 Number of IPv4 prefixes with a valid ROA: 642117 Number of IPv4 prefixes with an invalid ROA: 529 Number of IPv4 prefixes with no ROA: 401650 Total ASes present in the Internet Routing Table: 78400 Prefixes per ASN: 13.32 Origin-only ASes present in the Internet Routing Table: 67198 Origin ASes announcing only one prefix: 27404 Transit ASes present in the Internet Routing Table: 11202 Transit-only ASes present in the Internet Routing Table: 597 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: 994 Number of instances of unregistered ASNs: 1023 Number of 32-bit ASNs allocated by the RIRs: 49685 Number of 32-bit ASNs visible in the Routing Table: 40568 Prefixes from 32-bit ASNs in the Routing Table: 229570 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 425 Number of addresses announced to Internet: 3103015424 Equivalent to 184 /8s, 244 /16s and 66 /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: 341153 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285372 Total APNIC prefixes after maximum aggregation: 82816 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 271630 Unique aggregates announced from the APNIC address blocks: 107928 APNIC Region origin ASes present in the Internet Routing Table: 15165 APNIC Prefixes per ASN: 17.91 APNIC Region origin ASes announcing only one prefix: 4602 APNIC Region transit ASes present in the Internet Routing Table: 2052 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: 10765 Number of APNIC addresses announced to Internet: 747693312 Equivalent to 44 /8s, 144 /16s and 229 /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: 302029 Total ARIN prefixes after maximum aggregation: 136367 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 301391 Unique aggregates announced from the ARIN address blocks: 147618 ARIN Region origin ASes present in the Internet Routing Table: 19417 ARIN Prefixes per ASN: 15.52 ARIN Region origin ASes announcing only one prefix: 7123 ARIN Region transit ASes present in the Internet Routing Table: 1896 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: 5571 Number of ARIN addresses announced to Internet: 1347688448 Equivalent to 80 /8s, 84 /16s and 24 /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: 290060 Total RIPE prefixes after maximum aggregation: 143307 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 293273 Unique aggregates announced from the RIPE address blocks: 191469 RIPE Region origin ASes present in the Internet Routing Table: 29472 RIPE Prefixes per ASN: 9.95 RIPE Region origin ASes announcing only one prefix: 12217 RIPE Region transit ASes present in the Internet Routing Table: 4085 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13399 Number of RIPE addresses announced to Internet: 733437952 Equivalent to 43 /8s, 183 /16s and 96 /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: 128689 Total LACNIC prefixes after maximum aggregation: 30842 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 123060 Unique aggregates announced from the LACNIC address blocks: 50301 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: 9443 Number of LACNIC addresses announced to Internet: 169749248 Equivalent to 10 /8s, 30 /16s and 43 /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: 37152 Total AfriNIC prefixes after maximum aggregation: 6974 AfriNIC Deaggregation factor: 5.33 Prefixes being announced from the AfriNIC address blocks: 54517 Unique aggregates announced from the AfriNIC address blocks: 19359 AfriNIC Region origin ASes present in the Internet Routing Table: 2023 AfriNIC Prefixes per ASN: 26.95 AfriNIC Region origin ASes announcing only one prefix: 737 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: 1390 Number of AfriNIC addresses announced to Internet: 104250368 Equivalent to 6 /8s, 54 /16s and 188 /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 13870 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 4552 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4063 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3719 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3538 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3460 218 581 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 14929 41296 5699 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 3867 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 2646 2560 918 WINDSTREAM - Windstream Communications LL 30036 2612 359 455 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 7178 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3896 358 2302 M247, RO 20940 3795 3389 109 AKAMAI-ASN1, NL 12389 3143 2321 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2769 202 2041 CDNEXT, GB 34984 2499 368 586 TELLCOM-AS, TR 8452 1709 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 12766 3266 636 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2419 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 1229 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 1272 389 16 LINKdotNET-AS, EG 36935 1237 520 41 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1007 70 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 328608 563 53 157 Africa-on-Cloud-AS, ZA 15399 552 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 14929 41296 5699 AMAZON-02 - Amazon.com, Inc., US 9808 13870 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12766 3266 636 UNINET, MX 12479 7178 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 4552 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 13870 13749 CHINAMOBILE-CN China Mobile Communications Grou 8151 12766 12130 UNINET, MX 12479 7178 7029 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 4552 4526 FPT-AS-AP FPT Telecom Company, VN 22773 4785 4420 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4063 4035 VIETEL-AS-AP Viettel Group, VN 7155 3867 3777 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, 23.140.216.0/24 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US 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 /12:297 /13:581 /14:1186 /15:2096 /16:13579 /17:8247 /18:13271 /19:25395 /20:45669 /21:52328 /22:113533 /23:107749 /24:660201 /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 6973 12766 UNINET, MX 12479 6115 7178 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 2822 3867 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2688 14929 AMAZON-02 - Amazon.com, Inc., US 30036 2265 2612 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2495 2:2013 3:1003 4:5 5:5164 6:200 7:6 8:1470 9:43 11:172 12:1172 13:704 14:2707 15:464 16:208 17:443 18:921 20:591 21:4 22:188 23:8303 24:2782 25:2 27:2805 28:1 29:19 31:3536 32:36 34:90 35:284 36:4760 37:4431 38:9647 39:1294 40:440 41:4575 42:2161 43:3174 44:449 45:19864 46:4892 47:439 48:127 49:2348 50:2008 51:677 52:1316 54:282 55:1027 56:11 57:321 58:2364 59:1381 60:1175 61:3179 62:3123 63:1686 64:6378 65:2145 66:6103 67:3269 68:1504 69:4218 70:1061 71:607 72:3182 74:3053 75:1501 76:597 77:2959 78:2031 79:1794 80:2350 81:2241 82:4177 83:1454 84:2148 85:3837 86:1092 87:2495 88:1336 89:4780 90:811 91:8464 92:2794 93:3033 94:4402 95:4739 96:1453 97:310 98:944 99:832 100:70 101:1626 102:4523 103:33017 104:5371 105:856 106:900 107:2940 108:1270 109:4243 110:2289 111:4130 112:3172 113:1973 114:2282 115:2303 116:2159 117:3485 118:3043 119:2083 120:2709 121:1542 122:2989 123:2284 124:1709 125:3033 126:126 128:1571 129:960 130:1643 131:2474 132:887 133:486 134:1687 135:606 136:1541 137:1357 138:3389 139:1617 140:1769 141:1741 142:2564 143:2103 144:1773 145:638 146:2186 147:2249 148:2805 149:3115 150:1374 151:2917 152:2563 153:1553 154:9630 155:2299 156:5058 157:2400 158:1575 159:2875 160:3799 161:1969 162:4065 163:2550 164:2450 165:2672 166:1273 167:2313 168:4021 169:867 170:5611 171:1140 172:4775 173:3464 174:890 175:1366 176:3945 177:4844 178:4419 179:2338 180:3187 181:4578 182:4032 183:2833 184:2000 185:21899 186:6096 187:5006 188:4602 189:4535 190:9809 191:1683 192:11473 193:9628 194:7893 195:5825 196:3362 197:3309 198:6130 199:6067 200:8112 201:6394 202:10669 203:10655 204:4754 205:3680 206:4402 207:3819 208:4346 209:5411 210:4738 211:2690 212:5085 213:4093 214:1039 215:47 216:7296 217:3603 218:1705 219:416 220:2191 221:1346 222:938 223:3446 End of report