This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 25 Oct, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1034217 Prefixes after maximum aggregation (per Origin AS): 393680 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 498625 Number of IPv4 prefixes with a valid ROA: 592687 Number of IPv4 prefixes with an invalid ROA: 20 Number of IPv4 prefixes with no ROA: 441510 Total ASes present in the Internet Routing Table: 77594 Prefixes per ASN: 13.33 Origin-only ASes present in the Internet Routing Table: 66391 Origin ASes announcing only one prefix: 27059 Transit ASes present in the Internet Routing Table: 11203 Transit-only ASes present in the Internet Routing Table: 566 Paths with bogon ASNs present in the IPv4 Routing Table: 52 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 65 Max AS path prepend of ASN ( 37447) 59 Prefixes from unregistered ASNs in the Routing Table: 970 Number of instances of unregistered ASNs: 999 Number of 32-bit ASNs allocated by the RIRs: 47809 Number of 32-bit ASNs visible in the Routing Table: 39238 Prefixes from 32-bit ASNs in the Routing Table: 217265 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 307 Number of addresses announced to Internet: 3117392705 Equivalent to 185 /8s, 207 /16s and 163 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 336016 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282543 Total APNIC prefixes after maximum aggregation: 81264 APNIC Deaggregation factor: 3.48 Prefixes being announced from the APNIC address blocks: 272526 Unique aggregates announced from the APNIC address blocks: 106186 APNIC Region origin ASes present in the Internet Routing Table: 14926 APNIC Prefixes per ASN: 18.26 APNIC Region origin ASes announcing only one prefix: 4521 APNIC Region transit ASes present in the Internet Routing Table: 2023 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10426 Number of APNIC addresses announced to Internet: 756975936 Equivalent to 45 /8s, 30 /16s and 137 /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: 302700 Total ARIN prefixes after maximum aggregation: 135167 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 303037 Unique aggregates announced from the ARIN address blocks: 144685 ARIN Region origin ASes present in the Internet Routing Table: 19374 ARIN Prefixes per ASN: 15.64 ARIN Region origin ASes announcing only one prefix: 7104 ARIN Region transit ASes present in the Internet Routing Table: 1998 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5391 Number of ARIN addresses announced to Internet: 1352442880 Equivalent to 80 /8s, 156 /16s and 164 /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: 284810 Total RIPE prefixes after maximum aggregation: 139254 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 284661 Unique aggregates announced from the RIPE address blocks: 181392 RIPE Region origin ASes present in the Internet Routing Table: 29116 RIPE Prefixes per ASN: 9.78 RIPE Region origin ASes announcing only one prefix: 12081 RIPE Region transit ASes present in the Internet Routing Table: 4052 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12796 Number of RIPE addresses announced to Internet: 733344513 Equivalent to 43 /8s, 181 /16s and 243 /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: 127001 Total LACNIC prefixes after maximum aggregation: 30421 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 123051 Unique aggregates announced from the LACNIC address blocks: 49489 LACNIC Region origin ASes present in the Internet Routing Table: 11316 LACNIC Prefixes per ASN: 10.87 LACNIC Region origin ASes announcing only one prefix: 2658 LACNIC Region transit ASes present in the Internet Routing Table: 2552 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 39 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9288 Number of LACNIC addresses announced to Internet: 170748416 Equivalent to 10 /8s, 45 /16s and 106 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 36193 Total AfriNIC prefixes after maximum aggregation: 6907 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 50635 Unique aggregates announced from the AfriNIC address blocks: 16592 AfriNIC Region origin ASes present in the Internet Routing Table: 1973 AfriNIC Prefixes per ASN: 25.66 AfriNIC Region origin ASes announcing only one prefix: 695 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 65 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1337 Number of AfriNIC addresses announced to Internet: 103691520 Equivalent to 6 /8s, 46 /16s and 53 /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 13452 8889 173 CHINAMOBILE-CN China Mobile Communication 7545 6117 833 582 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4872 4192 75 ERX-CERNET-BKB China Education and Resear 9498 4480 536 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4411 347 25 FPT-AS-AP FPT Telecom Company, VN 45899 4396 1874 54 VNPT-AS-VN VNPT Corp, VN 7552 4010 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3717 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3378 848 233 CMNET-JIANGSU-AP China Mobile communicati 24560 2934 863 503 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14393 41104 5383 AMAZON-02, US 11492 4772 316 803 CABLEONE, US 174 4609 8766 827 COGENT-174, US 22773 4260 3067 368 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3874 287 89 VIASAT-SP-BACKBONE, US 6327 3686 1320 82 SHAW, CA 396982 3277 4825 468 GOOGLE-CLOUD-PLATFORM, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3127 242 1747 USDA-1, US 16625 2894 1234 2158 AKAMAI-AS, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7352 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3983 376 2268 M247, RO 20940 3934 3395 139 AKAMAI-ASN1, NL 12389 3144 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2509 177 1817 CDNEXT, GB 34984 2416 363 577 TELLCOM-AS, TR 5384 2395 585 28 EMIRATES-INTERNET Emirates Internet, AE 203020 1721 206 1005 HOSTROYALE, IN 8452 1675 1852 14 TE-AS TE-AS, EG Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12462 3295 574 UNINET, MX 10620 3456 463 1099 Telmex Colombia S.A., CO 13999 2510 510 349 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1373 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1280 371 23 Telefonica del Peru S.A.A., PE 11664 1259 278 32 Techtel LMDS Comunicaciones Interactivas 22884 1060 67 364 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1017 2486 56 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1925 630 32 RAYA-AS, EG 36992 1513 1498 386 ETISALAT-MISR, EG 24863 1262 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 36935 1101 521 44 Vodafone-, EG 37069 1085 1096 13 MOBINIL, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 572 82 3 KENET-AS, KE 15399 544 57 55 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14393 41104 5383 AMAZON-02, US 9808 13452 8889 173 CHINAMOBILE-CN China Mobile Communication 8151 12462 3295 574 UNINET, MX 12479 7352 1711 149 UNI2-AS, ES 7545 6117 833 582 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4872 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4772 316 803 CABLEONE, US 174 4609 8766 827 COGENT-174, US 9498 4480 536 311 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13452 13279 CHINAMOBILE-CN China Mobile Communications Grou 8151 12462 11888 UNINET, MX 12479 7352 7203 UNI2-AS, ES 7545 6117 5535 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4872 4797 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4411 4386 FPT-AS-AP FPT Telecom Company, VN 45899 4396 4342 VNPT-AS-VN VNPT Corp, VN 9498 4480 4169 BBIL-AP BHARTI Airtel Ltd., IN 7552 4010 3981 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE Complete listing at https://bgp.nsrc.org/REN/Guam/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 /10:41 /11:93 /12:301 /13:584 /14:1206 /15:2150 /16:13928 /17:8481 /18:14290 /19:25534 /20:46386 /21:53519 /22:114901 /23:108008 /24:644005 /25:151 /26:109 /27:114 /28:21 /29:66 /30:12 /31:3 /32:284 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6670 12462 UNINET, MX 12479 6311 7352 UNI2-AS, ES 11492 3586 4772 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3474 3686 SHAW, CA 7155 2832 3874 VIASAT-SP-BACKBONE, US 22773 2627 4260 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2427 14393 AMAZON-02, US 30036 2296 2638 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2211 3456 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2502 2:1624 3:955 4:12 5:4986 6:170 7:6 8:1547 9:6 11:172 12:1239 13:543 14:2726 15:402 16:303 17:391 18:909 20:591 21:4 22:189 23:8059 24:2613 25:2 27:2868 29:19 31:3441 32:35 33:1 34:85 35:279 36:4514 37:4597 38:10601 39:1106 40:453 41:4430 42:1974 43:2912 44:402 45:19425 46:5277 47:389 49:2143 50:2049 51:596 52:1631 54:357 55:1098 56:11 57:292 58:2394 59:1389 60:1219 61:3154 62:3100 63:1769 64:5861 65:2136 66:5640 67:3155 68:1476 69:4206 70:1035 71:637 72:2966 74:2880 75:1516 76:600 77:2758 78:1901 79:1765 80:2277 81:2132 82:3459 83:1512 84:1999 85:3579 86:1196 87:2401 88:1333 89:4549 90:816 91:8447 92:2867 93:3002 94:4293 95:4506 96:1508 97:313 98:949 99:754 100:71 101:1499 102:4424 103:32746 104:5438 105:1031 106:914 107:2777 108:1206 109:4269 110:2304 111:3888 112:2756 113:1922 114:2097 115:2353 116:2175 117:3073 118:3106 119:2123 120:2381 121:1569 122:2960 123:2424 124:1813 125:2940 126:124 128:1611 129:981 130:1457 131:2238 132:794 133:461 134:1630 135:366 136:1441 137:1285 138:2886 139:1663 140:1660 141:1548 142:2206 143:2095 144:1305 145:629 146:2197 147:2133 148:2758 149:2945 150:1300 151:2622 152:2220 153:648 154:8259 155:2198 156:3238 157:2000 158:1447 159:2612 160:3655 161:2011 162:3986 163:2314 164:1959 165:2567 166:1517 167:2109 168:3861 169:782 170:5468 171:1068 172:4463 173:3432 174:905 175:1380 176:3780 177:4886 178:4313 179:2348 180:2820 181:4330 182:3785 183:2566 184:2093 185:21765 186:5452 187:4760 188:4414 189:4478 190:9780 191:1620 192:11438 193:9510 194:7986 195:5753 196:3288 197:3342 198:6138 199:8841 200:8284 201:6423 202:11070 203:10923 204:4616 205:3649 206:4458 207:3762 208:4288 209:5405 210:5098 211:2913 212:4955 213:3942 214:1035 215:53 216:7174 217:3494 218:1644 219:620 220:2209 221:1262 222:1006 223:3158 End of report