[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon Mar 31 20:17:00 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Mon 31 Mar, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 270725
Prefixes after maximum aggregation (per Origin AS): 118093
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 142070
Number of IPv4 prefixes with a valid ROA: 123067
Number of IPv4 prefixes with an invalid ROA: 16
Number of IPv4 prefixes with no ROA: 147642
Total ASes present in the Internet Routing Table: 20762
Prefixes per ASN: 13.04
Origin-only ASes present in the Internet Routing Table: 17872
Origin ASes announcing only one prefix: 7967
Transit ASes present in the Internet Routing Table: 2890
Transit-only ASes present in the Internet Routing Table: 768
Paths with bogon ASNs present in the IPv4 Routing Table: 6
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 272
Number of instances of unregistered ASNs: 273
Number of 32-bit ASNs allocated by the RIRs: 46117
Number of 32-bit ASNs visible in the Routing Table: 8194
Prefixes from 32-bit ASNs in the Routing Table: 31759
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 1560063837
Equivalent to 92 /8s, 252 /16s and 175 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 42.1
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: 87403
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32042
Total APNIC prefixes after maximum aggregation: 7624
APNIC Deaggregation factor: 4.20
Prefixes being announced from the APNIC address blocks: 30830
Unique aggregates announced from the APNIC address blocks: 8209
APNIC Region origin ASes present in the Internet Routing Table: 1218
APNIC Prefixes per ASN: 25.31
APNIC Region origin ASes announcing only one prefix: 488
APNIC Region transit ASes present in the Internet Routing Table: 213
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 556
Number of APNIC addresses announced to Internet: 169129836
Equivalent to 10 /8s, 20 /16s and 183 /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: 125730
Total ARIN prefixes after maximum aggregation: 64678
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 123445
Unique aggregates announced from the ARIN address blocks: 66727
ARIN Region origin ASes present in the Internet Routing Table: 9373
ARIN Prefixes per ASN: 13.17
ARIN Region origin ASes announcing only one prefix: 3904
ARIN Region transit ASes present in the Internet Routing Table: 873
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2165
Number of ARIN addresses announced to Internet: 964911585
Equivalent to 57 /8s, 131 /16s and 97 /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: 50252
Total RIPE prefixes after maximum aggregation: 27532
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 51898
Unique aggregates announced from the RIPE address blocks: 38393
RIPE Region origin ASes present in the Internet Routing Table: 4699
RIPE Prefixes per ASN: 11.04
RIPE Region origin ASes announcing only one prefix: 1964
RIPE Region transit ASes present in the Internet Routing Table: 701
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1939
Number of RIPE addresses announced to Internet: 281460688
Equivalent to 16 /8s, 198 /16s and 191 /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: 51858
Total LACNIC prefixes after maximum aggregation: 15814
LACNIC Deaggregation factor: 3.28
Prefixes being announced from the LACNIC address blocks: 50444
Unique aggregates announced from the LACNIC address blocks: 24449
LACNIC Region origin ASes present in the Internet Routing Table: 4309
LACNIC Prefixes per ASN: 11.71
LACNIC Region origin ASes announcing only one prefix: 1503
LACNIC Region transit ASes present in the Internet Routing Table: 872
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3388
Number of LACNIC addresses announced to Internet: 100949312
Equivalent to 6 /8s, 4 /16s and 93 /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: 10571
Total AfriNIC prefixes after maximum aggregation: 2243
AfriNIC Deaggregation factor: 4.71
Prefixes being announced from the AfriNIC address blocks: 13990
Unique aggregates announced from the AfriNIC address blocks: 4179
AfriNIC Region origin ASes present in the Internet Routing Table: 275
AfriNIC Prefixes per ASN: 50.87
AfriNIC Region origin ASes announcing only one prefix: 108
AfriNIC Region transit ASes present in the Internet Routing Table: 77
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 146
Number of AfriNIC addresses announced to Internet: 43562496
Equivalent to 2 /8s, 152 /16s and 182 /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 10124 8753 88 CHINAMOBILE-CN China Mobile Communication
56046 1574 803 179 CMNET-JIANGSU-AP China Mobile communicati
56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1482 192 53 CMNET-HUNAN-AP China Mobile communication
24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
17561 520 33 208 LCS-AS-AP LARUS Limited, HK
24445 520 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 478 779 138 ALIBABA-CN-NET Alibaba US Technology Co.,
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 12956 39643 3980 AMAZON-02, US
22773 3373 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2551 189 1554 USDA-1, US
367 2437 2886 1175 DNIC-ASBLK-00306-00371, US
36352 2354 196 1063 AS-COLOCROSSING, US
7018 2217 22907 1580 ATT-INTERNET4, US
11776 1879 257 217 ATLANTICBB-JOHNSTOWN, US
6167 1819 3570 457 CELLCO-PART, US
209 1670 4890 277 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1254 98 1012 AKAMAI-ASN1, NL
3257 928 2075 749 GTT-BACKBONE GTT, US
3215 927 4886 286 France Telecom - Orange, FR
25019 817 1299 129 SAUDINETSTC-AS, SA
62240 744 51 465 CLOUVIDER Clouvider - Global ASN, GB
34984 654 73 475 TELLCOM-AS, TR
8452 610 1842 17 TE-AS TE-AS, EG
203214 590 43 344 HULUMTELE, IQ
8376 570 53 25 Jordan Data Communications, JO
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7322 2016 1001 UNINET, MX
10620 2042 305 1336 Telmex Colombia S.A., CO
11830 1991 369 64 Instituto Costarricense de Electricidad y
3816 1332 783 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1192 371 21 Telefonica del Peru S.A.A., PE
26615 1016 2503 53 TIM SA, BR
18881 882 1127 31 TELEFONICA BRASIL S.A, BR
27651 656 95 43 ENTEL CHILE S.A., CL
28006 643 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 545 2884 69 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1467 389 18 LINKdotNET-AS, EG
29571 1209 101 70 ORANGE-COTE-IVOIRE, CI
20011 980 183 284 INTERNET-SOLUTIONS, ZA
24835 805 504 37 RAYA-AS, EG
36935 687 520 41 Vodafone-, EG
36992 604 1229 126 ETISALAT-MISR, EG
36914 545 82 3 KENET-AS, KE
37069 523 1047 18 MOBINIL, EG
36903 417 195 306 MT-MPLS, MA
2018 374 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 12956 39643 3980 AMAZON-02, US
9808 10124 8753 88 CHINAMOBILE-CN China Mobile Communication
8151 7322 2016 1001 UNINET, MX
22773 3373 3017 175 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2551 189 1554 USDA-1, US
367 2437 2886 1175 DNIC-ASBLK-00306-00371, US
36352 2354 196 1063 AS-COLOCROSSING, US
7018 2217 22907 1580 ATT-INTERNET4, US
10620 2042 305 1336 Telmex Colombia S.A., CO
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10124 10036 CHINAMOBILE-CN China Mobile Communications Grou
8151 7322 6321 UNINET, MX
22773 3373 3198 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1991 1927 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1879 1662 ATLANTICBB-JOHNSTOWN, US
56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1467 1449 LINKdotNET-AS, EG
56047 1482 1429 CMNET-HUNAN-AP China Mobile communications corp
56046 1574 1395 CMNET-JIANGSU-AP China Mobile communications co
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
53966 UNALLOCATED 8.39.98.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
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
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 PIGGYTARO-DATA, CA
23.158.216.0/24 Transit: 22427 GNET-AS, US
41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A
41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:42 /12:150
/13:218 /14:578 /15:1101 /16:7619 /17:3474 /18:4233
/19:7761 /20:12565 /21:15581 /22:28369 /23:28276 /24:160490
/25:61 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3848 7322 UNINET, MX
22773 2515 3373 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2327 12956 AMAZON-02, US
11830 1692 1991 Instituto Costarricense de Electricidad y Telecom., CR
10620 1143 2042 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
209 966 1670 CENTURYLINK-US-LEGACY-QWEST, US
36352 941 2354 AS-COLOCROSSING, US
19901 937 1183 BRSPD-PUBLIC, US
11776 881 1879 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:65 2:486 3:597 4:5 5:848 6:150
7:5 8:641 11:171 12:1010 13:295 14:140
15:301 16:241 17:5 18:883 20:173 21:4
22:188 23:2502 24:961 27:24 29:19 31:532
32:18 34:10 35:131 36:1224 37:1086 38:2330
39:543 40:54 41:970 42:221 43:211 44:31
45:4219 46:971 47:83 49:54 50:355 51:381
52:1386 54:276 55:877 56:11 57:18 58:45
59:31 60:16 61:67 62:558 63:779 64:1882
65:1086 66:1602 67:970 68:418 69:1202 70:443
71:213 72:859 74:977 75:436 76:249 77:489
78:328 79:277 80:303 81:351 82:743 83:238
84:363 85:529 86:238 87:258 88:291 89:847
90:106 91:1002 92:708 93:459 94:935 95:687
96:293 97:63 98:476 99:160 100:35 101:25
102:396 103:1258 104:1510 105:135 106:62 107:1487
108:543 109:430 110:57 111:1929 112:462 113:45
114:67 115:22 116:53 117:1037 118:164 119:130
120:1163 121:45 122:105 123:147 124:57 125:20
128:488 129:309 130:671 131:969 132:560 133:213
134:544 135:117 136:564 137:503 138:1051 139:433
140:714 141:449 142:973 143:703 144:424 145:113
146:700 147:499 148:872 149:759 150:377 151:706
152:528 153:127 154:1519 155:808 156:1292 157:377
158:507 159:741 160:930 161:717 162:1010 163:351
164:726 165:839 166:786 167:647 168:1524 169:145
170:1689 171:120 172:1417 173:822 174:253 175:56
176:529 177:1169 178:534 179:828 180:50 181:1976
182:43 183:857 184:506 185:3602 186:2495 187:1488
188:802 189:1806 190:5230 191:519 192:5154 193:1858
194:1268 195:954 196:836 197:1548 198:2715 199:4889
200:4031 201:3407 202:992 203:712 204:2175 205:2003
206:1580 207:1512 208:1371 209:1982 210:308 211:426
212:1101 213:885 214:1009 215:42 216:2505 217:449
218:521 219:20 220:20 221:301 222:32 223:741
End of report
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