IPv4 R&E Routing Table Report 23:00 GMT Mon 01 Jun, 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: 1048157 Prefixes after maximum aggregation (per Origin AS): 404023 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 520014 Number of IPv4 prefixes with a valid ROA: 680808 Number of IPv4 prefixes with an invalid ROA: 497 Number of IPv4 prefixes with no ROA: 366852 Total ASes present in the Internet Routing Table: 78495 Prefixes per ASN: 13.35 Origin-only ASes present in the Internet Routing Table: 67274 Origin ASes announcing only one prefix: 27437 Transit ASes present in the Internet Routing Table: 11221 Transit-only ASes present in the Internet Routing Table: 581 Paths with bogon ASNs present in the IPv4 Routing Table: 42 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: 1147 Number of instances of unregistered ASNs: 1177 Number of 32-bit ASNs allocated by the RIRs: 49966 Number of 32-bit ASNs visible in the Routing Table: 40734 Prefixes from 32-bit ASNs in the Routing Table: 231741 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: 432 Number of addresses announced to Internet: 3103871744 Equivalent to 185 /8s, 1 /16s and 83 /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: 341857 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 286724 Total APNIC prefixes after maximum aggregation: 83503 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 273462 Unique aggregates announced from the APNIC address blocks: 108975 APNIC Region origin ASes present in the Internet Routing Table: 15177 APNIC Prefixes per ASN: 18.02 APNIC Region origin ASes announcing only one prefix: 4606 APNIC Region transit ASes present in the Internet Routing Table: 2045 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10788 Number of APNIC addresses announced to Internet: 747879680 Equivalent to 44 /8s, 147 /16s and 189 /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: 303121 Total ARIN prefixes after maximum aggregation: 137542 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 301772 Unique aggregates announced from the ARIN address blocks: 148235 ARIN Region origin ASes present in the Internet Routing Table: 19417 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7122 ARIN Region transit ASes present in the Internet Routing Table: 1906 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: 5607 Number of ARIN addresses announced to Internet: 1348040960 Equivalent to 80 /8s, 89 /16s and 121 /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: 290802 Total RIPE prefixes after maximum aggregation: 144425 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 294471 Unique aggregates announced from the RIPE address blocks: 192625 RIPE Region origin ASes present in the Internet Routing Table: 29533 RIPE Prefixes per ASN: 9.97 RIPE Region origin ASes announcing only one prefix: 12244 RIPE Region transit ASes present in the Internet Routing Table: 4101 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: 13483 Number of RIPE addresses announced to Internet: 733745152 Equivalent to 43 /8s, 188 /16s and 16 /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: 128858 Total LACNIC prefixes after maximum aggregation: 30853 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123219 Unique aggregates announced from the LACNIC address blocks: 50348 LACNIC Region origin ASes present in the Internet Routing Table: 11417 LACNIC Prefixes per ASN: 10.79 LACNIC Region origin ASes announcing only one prefix: 2736 LACNIC Region transit ASes present in the Internet Routing Table: 2590 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: 9459 Number of LACNIC addresses announced to Internet: 169787648 Equivalent to 10 /8s, 30 /16s and 193 /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: 37505 Total AfriNIC prefixes after maximum aggregation: 7037 AfriNIC Deaggregation factor: 5.33 Prefixes being announced from the AfriNIC address blocks: 54801 Unique aggregates announced from the AfriNIC address blocks: 19459 AfriNIC Region origin ASes present in the Internet Routing Table: 2031 AfriNIC Prefixes per ASN: 26.98 AfriNIC Region origin ASes announcing only one prefix: 729 AfriNIC Region transit ASes present in the Internet Routing Table: 388 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: 1397 Number of AfriNIC addresses announced to Internet: 104221184 Equivalent to 6 /8s, 54 /16s and 74 /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 13942 8737 119 CHINAMOBILE-CN - China Mobile Communicati 7545 5875 825 475 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 4944 552 325 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4563 347 25 FPT-VN - FPT Telecom Company, VN 7552 4063 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3724 1044 64 telkomnet-as-ap - PT Telekomunikasi Indon 56046 3545 887 177 CMNET-Jiangsu-AP - China Mobile communica 17561 3385 213 600 LCS-AS-AP - LARUS Limited, HK 45899 3374 1868 100 VNPT-AS-VN - VNPT Corp, VN 24560 2740 745 735 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 15021 41423 5722 AMAZON-02 - Amazon.com, Inc., US 22773 4768 3115 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4593 305 1091 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3726 1305 74 SHAW - Shaw Communications, CA 396982 3366 4868 516 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3137 54728 2388 DNIC-AS-00749 - United States Department 36352 3073 232 1043 AS-COLOCROSSING - HostPapa, US 7029 2647 2557 894 WINDSTREAM - Windstream Communications LL 30036 2541 352 593 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 7177 1711 149 UNI2-AS - Orange Espagne SA, ES 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4068 370 2458 M247 - M247 Europe SRL, RO 20940 3783 3389 109 AKAMAI-ASN1 - Akamai International B.V., 12389 3147 2318 867 ROSTELECOM-AS - PJSC Rostelecom, RU 212238 2949 215 2192 CDNEXT - Datacamp Limited, GB 34984 2485 367 583 TELLCOM-AS - Superonline Iletisim Hizmetl 8452 1722 1852 14 TE-AS - IDDQD-AS, EG 203020 1652 252 826 HostRoyale - HostRoyale Technologies Pvt 13188 1607 100 27 TRIOLAN - CONTENT DELIVERY NETWORK LTD, U 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 3256 630 AS8151 - UNINET, MX 10620 3432 450 1101 AS10620 - Telmex Colombia S.A., CO 13999 2349 498 351 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1930 369 65 AS11830 - Instituto Costarricense de Elec 11664 1475 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1363 2430 269 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1342 770 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1225 371 22 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1083 70 363 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1072 2392 100 AS26615 - TIM S/A, 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 2028 649 36 Vodafone Data - Vodafone Data, EG 36992 1860 1532 337 ETISALAT MISR - ETISALAT MISR, EG 36935 1292 523 45 Vodafone Data - Vodafone Data, EG 24863 1269 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1232 555 98 Office National des Postes et Telecommuni 37069 1117 1100 11 The Egyptian Company for Mobile Services 29571 1085 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 328608 618 57 170 Africa on Cloud - Africa on Cloud, ZA 20011 589 155 220 Dimension Data - Dimension Data, ZA 15399 553 57 57 Wananchi Group (Kenya) Limited - Wananchi 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 15021 41423 5722 AMAZON-02 - Amazon.com, Inc., US 9808 13942 8737 119 CHINAMOBILE-CN - China Mobile Communicati 8151 12766 3256 630 AS8151 - UNINET, MX 12479 7177 1711 149 UNI2-AS - Orange Espagne SA, ES 7545 5875 825 475 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 9498 4944 552 325 BBIL-AP - BHARTI Airtel Ltd., IN 22773 4768 3115 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4593 305 1091 CABLEONE - CABLE ONE, INC., US 18403 4563 347 25 FPT-VN - 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 13942 13823 CHINAMOBILE-CN - China Mobile Communications Gr 8151 12766 12136 AS8151 - UNINET, MX 12479 7177 7028 UNI2-AS - Orange Espagne SA, ES 7545 5875 5400 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 4944 4619 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4563 4538 FPT-VN - FPT Telecom Company, VN 22773 4768 4400 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4063 4039 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 46198 UNALLOCATED 8.10.6.0/24 23520 LIBERTY-NETWORKS - Colu 46198 UNALLOCATED 8.10.7.0/24 23520 LIBERTY-NETWORKS - Colu 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 400273 UNALLOCATED 8.41.137.0/24 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.100.0/24 Origin: 401541 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 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 - OVH SAS, FR 23.137.200.0/24 Transit: 6762 SEABONE-NET - TELECOM ITALIA SPARKLE S.p 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 /12:298 /13:580 /14:1184 /15:2105 /16:13568 /17:8215 /18:13280 /19:25424 /20:45738 /21:52322 /22:113356 /23:108014 /24:663909 /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 6986 12766 AS8151 - UNINET, MX 12479 6113 7177 UNI2-AS - Orange Espagne SA, ES 39891 3660 4975 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3508 3726 SHAW - Shaw Communications, CA 11492 3469 4593 CABLEONE - CABLE ONE, INC., US 22773 3056 4768 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2712 15021 AMAZON-02 - Amazon.com, Inc., US 10620 2236 3432 AS10620 - Telmex Colombia S.A., CO 30036 2197 2541 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) ---------------------------------------------- 1:2515 2:2051 3:997 4:5 5:5210 6:203 7:6 8:1471 9:64 11:172 12:1122 13:693 14:2717 15:465 16:281 17:442 18:917 20:593 21:4 22:188 23:8377 24:2773 25:2 27:2796 28:1 29:19 31:3681 32:36 34:91 35:285 36:4809 37:4427 38:9828 39:1307 40:413 41:4506 42:2166 43:3236 44:455 45:19800 46:4889 47:437 48:158 49:2411 50:2020 51:810 52:1348 54:287 55:1103 56:11 57:324 58:2676 59:1477 60:1167 61:3155 62:3146 63:1637 64:6374 65:2155 66:6018 67:3266 68:1271 69:4113 70:1059 71:608 72:3185 74:3074 75:1498 76:593 77:2952 78:2033 79:1802 80:2348 81:2277 82:4260 83:1458 84:2176 85:3843 86:1097 87:2591 88:1319 89:4785 90:805 91:8454 92:2783 93:3021 94:4410 95:4692 96:1447 97:308 98:938 99:850 100:70 101:1629 102:4683 103:32875 104:5488 105:858 106:899 107:2946 108:1272 109:4278 110:2285 111:4135 112:3166 113:1995 114:2527 115:2301 116:2082 117:3600 118:3048 119:2111 120:2912 121:1550 122:3011 123:2213 124:1710 125:3033 126:158 128:1562 129:924 130:1669 131:2433 132:885 133:490 134:1723 135:617 136:1462 137:1361 138:3405 139:1797 140:1859 141:1782 142:2581 143:2055 144:1777 145:652 146:2183 147:2241 148:2793 149:3275 150:1382 151:2955 152:2592 153:1651 154:9562 155:2315 156:5001 157:2500 158:1582 159:2868 160:3869 161:2020 162:4112 163:2603 164:2418 165:2764 166:1262 167:2356 168:4069 169:870 170:5617 171:1140 172:4843 173:3449 174:893 175:1364 176:3949 177:5000 178:4453 179:2423 180:3333 181:4597 182:4038 183:2859 184:2019 185:21767 186:6194 187:5010 188:4599 189:4539 190:9886 191:1705 192:11665 193:9591 194:7844 195:5832 196:3378 197:3321 198:6110 199:6070 200:8136 201:6463 202:10658 203:10666 204:4790 205:3705 206:4385 207:3832 208:4366 209:5410 210:4733 211:2695 212:5097 213:4102 214:1042 215:47 216:7225 217:3618 218:1764 219:417 220:2219 221:1351 222:946 223:3599 End of report