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 17 Jan, 2026 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: 1043921 Prefixes after maximum aggregation (per Origin AS): 396048 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 506834 Number of IPv4 prefixes with a valid ROA: 616232 Number of IPv4 prefixes with an invalid ROA: 18 Number of IPv4 prefixes with no ROA: 427670 Total ASes present in the Internet Routing Table: 77859 Prefixes per ASN: 13.41 Origin-only ASes present in the Internet Routing Table: 66662 Origin ASes announcing only one prefix: 27142 Transit ASes present in the Internet Routing Table: 11197 Transit-only ASes present in the Internet Routing Table: 566 Paths with bogon ASNs present in the IPv4 Routing Table: 80 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 212 Max AS path prepend of ASN (214570) 200 Prefixes from unregistered ASNs in the Routing Table: 987 Number of instances of unregistered ASNs: 1038 Number of 32-bit ASNs allocated by the RIRs: 48411 Number of 32-bit ASNs visible in the Routing Table: 39686 Prefixes from 32-bit ASNs in the Routing Table: 222624 Number of bogon 32-bit ASNs visible in the Routing Table: 114 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 393 Number of addresses announced to Internet: 3110955941 Equivalent to 185 /8s, 109 /16s and 107 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 338457 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 289708 Total APNIC prefixes after maximum aggregation: 82593 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 276532 Unique aggregates announced from the APNIC address blocks: 106942 APNIC Region origin ASes present in the Internet Routing Table: 15085 APNIC Prefixes per ASN: 18.33 APNIC Region origin ASes announcing only one prefix: 4598 APNIC Region transit ASes present in the Internet Routing Table: 2026 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10599 Number of APNIC addresses announced to Internet: 758985024 Equivalent to 45 /8s, 61 /16s and 49 /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: 303710 Total ARIN prefixes after maximum aggregation: 134990 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 303693 Unique aggregates announced from the ARIN address blocks: 146063 ARIN Region origin ASes present in the Internet Routing Table: 19401 ARIN Prefixes per ASN: 15.65 ARIN Region origin ASes announcing only one prefix: 7069 ARIN Region transit ASes present in the Internet Routing Table: 1980 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: 5447 Number of ARIN addresses announced to Internet: 1344441088 Equivalent to 80 /8s, 34 /16s and 139 /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: 284122 Total RIPE prefixes after maximum aggregation: 140086 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 285751 Unique aggregates announced from the RIPE address blocks: 184627 RIPE Region origin ASes present in the Internet Routing Table: 29136 RIPE Prefixes per ASN: 9.81 RIPE Region origin ASes announcing only one prefix: 12087 RIPE Region transit ASes present in the Internet Routing Table: 4051 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 212 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12928 Number of RIPE addresses announced to Internet: 733587457 Equivalent to 43 /8s, 185 /16s and 168 /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: 128192 Total LACNIC prefixes after maximum aggregation: 30777 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 123940 Unique aggregates announced from the LACNIC address blocks: 49708 LACNIC Region origin ASes present in the Internet Routing Table: 11347 LACNIC Prefixes per ASN: 10.92 LACNIC Region origin ASes announcing only one prefix: 2663 LACNIC Region transit ASes present in the Internet Routing Table: 2547 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9341 Number of LACNIC addresses announced to Internet: 170541920 Equivalent to 10 /8s, 42 /16s and 67 /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: 37202 Total AfriNIC prefixes after maximum aggregation: 6929 AfriNIC Deaggregation factor: 5.37 Prefixes being announced from the AfriNIC address blocks: 53611 Unique aggregates announced from the AfriNIC address blocks: 19184 AfriNIC Region origin ASes present in the Internet Routing Table: 2005 AfriNIC Prefixes per ASN: 26.74 AfriNIC Region origin ASes announcing only one prefix: 725 AfriNIC Region transit ASes present in the Internet Routing Table: 391 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 44 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1371 Number of AfriNIC addresses announced to Internet: 103149056 Equivalent to 6 /8s, 37 /16s and 238 /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 13675 9087 159 CHINAMOBILE-CN China Mobile Communication 7545 6025 833 571 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4839 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4683 543 338 BBIL-AP BHARTI Airtel Ltd., IN 18403 4456 347 24 FPT-AS-AP FPT Telecom Company, VN 45899 4408 1873 52 VNPT-AS-VN VNPT Corp, VN 7552 4053 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3730 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3564 853 235 CMNET-JIANGSU-AP China Mobile communicati 24560 2959 865 498 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 14031 38738 5433 AMAZON-02, US 174 4902 8768 834 COGENT-174, US 11492 4635 308 1031 CABLEONE, US 22773 4495 3081 298 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3698 1321 70 SHAW, CA 396982 3324 4867 495 GOOGLE-CLOUD-PLATFORM, US 749 3145 54729 2396 DNIC-AS-00749, US 16625 2851 1228 2137 AKAMAI-AS, US 36352 2700 222 891 AS-COLOCROSSING, 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 7241 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3905 365 2231 M247, RO 20940 3866 3394 124 AKAMAI-ASN1, NL 12389 3184 2317 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2574 183 1871 CDNEXT, GB 34984 2424 372 576 TELLCOM-AS, TR 8452 1708 1852 14 TE-AS TE-AS, EG 203020 1628 244 800 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12679 3300 603 UNINET, MX 10620 3434 457 1108 Telmex Colombia S.A., CO 13999 2486 508 350 Mega Cable, S.A. de C.V., MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1254 371 22 Telefonica del Peru S.A.A., PE 22884 1057 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 2486 56 TIM SA, BR 18881 904 1127 31 TELEFONICA BRASIL S.A, 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 1982 638 33 RAYA-AS, EG 36992 1842 1534 340 ETISALAT-MISR, EG 24863 1276 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1146 524 47 Vodafone-, EG 37069 1099 1084 13 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 571 82 3 KENET-AS, KE 328608 567 48 164 Africa-on-Cloud-AS, ZA 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 14031 38738 5433 AMAZON-02, US 9808 13675 9087 159 CHINAMOBILE-CN China Mobile Communication 8151 12679 3300 603 UNINET, MX 12479 7241 1711 149 UNI2-AS, ES 7545 6025 833 571 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 174 4902 8768 834 COGENT-174, US 4538 4839 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4683 543 338 BBIL-AP BHARTI Airtel Ltd., IN 11492 4635 308 1031 CABLEONE, US 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 13675 13516 CHINAMOBILE-CN China Mobile Communications Grou 8151 12679 12076 UNINET, MX 12479 7241 7092 UNI2-AS, ES 7545 6025 5454 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 4538 4839 4763 ERX-CERNET-BKB China Education and Research Net 18403 4456 4432 FPT-AS-AP FPT Telecom Company, VN 45899 4408 4356 VNPT-AS-VN VNPT Corp, VN 9498 4683 4345 BBIL-AP BHARTI Airtel Ltd., IN 22773 4495 4197 ASN-CXA-ALL-CCI-22773-RDC, US 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 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4, US 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 10.2.3.8/30 21996 GUAMCELL, US 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 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 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 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 /10:40 /11:93 /12:303 /13:583 /14:1205 /15:2105 /16:13824 /17:8423 /18:14157 /19:25593 /20:46692 /21:53370 /22:114796 /23:108526 /24:653393 /25:151 /26:112 /27:113 /28:39 /29:66 /30:10 /31:3 /32:294 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6860 12679 UNINET, MX 12479 6172 7241 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3497 4635 CABLEONE, US 6327 3479 3698 SHAW, CA 22773 3050 4495 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2487 14031 AMAZON-02, US 30036 2318 2660 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2214 3434 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) ---------------------------------------------- 1:2553 2:1518 3:978 4:11 5:5010 6:185 7:6 8:1537 9:13 11:172 12:1226 13:621 14:2702 15:414 16:179 17:394 18:918 20:604 21:4 22:188 23:8176 24:2672 25:2 27:2879 29:19 31:3415 32:35 34:85 35:294 36:4648 37:4531 38:11011 39:1249 40:439 41:4589 42:2014 43:3077 44:415 45:19733 46:5018 47:423 49:2222 50:2068 51:598 52:1255 54:235 55:1078 56:11 57:314 58:2425 59:1418 60:1175 61:3263 62:3133 63:1779 64:6185 65:2139 66:6021 67:3271 68:1494 69:4291 70:1023 71:626 72:3028 74:2963 75:1522 76:605 77:2752 78:1923 79:1809 80:2319 81:2110 82:4027 83:1483 84:2027 85:3674 86:1098 87:2381 88:1357 89:4635 90:829 91:8438 92:2853 93:3027 94:4347 95:4540 96:1482 97:313 98:956 99:780 100:69 101:1602 102:4528 103:32724 104:5438 105:1034 106:926 107:2825 108:1229 109:4291 110:2315 111:4120 112:3110 113:1993 114:2185 115:2347 116:2205 117:3301 118:3027 119:2200 120:2644 121:1591 122:3003 123:2429 124:1754 125:3002 126:125 128:1598 129:960 130:1575 131:2287 132:772 133:461 134:1633 135:535 136:1634 137:1248 138:3038 139:1684 140:1782 141:1568 142:2470 143:2129 144:1562 145:631 146:2205 147:2289 148:2817 149:2972 150:1325 151:2605 152:2273 153:920 154:9710 155:2279 156:4347 157:2268 158:1491 159:2746 160:3746 161:2005 162:4020 163:2344 164:1974 165:2656 166:1307 167:2197 168:3990 169:852 170:5501 171:1119 172:4555 173:3438 174:892 175:1371 176:3778 177:4864 178:4276 179:2355 180:3063 181:4495 182:3902 183:2756 184:2062 185:21736 186:5805 187:4892 188:4634 189:4563 190:9765 191:1563 192:11493 193:9501 194:7914 195:5780 196:3277 197:3284 198:6120 199:6115 200:8262 201:6462 202:11078 203:10900 204:4678 205:3705 206:4465 207:3845 208:4415 209:5451 210:5136 211:2870 212:5009 213:4068 214:1055 215:54 216:7175 217:3460 218:1693 219:630 220:2200 221:1314 222:1121 223:3297 End of report