Routing Table Report 04:00 +10GMT Thu 03 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 380491
Prefixes after maximum aggregation: 166462
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 186752
Total ASes present in the Internet Routing Table: 39225
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 32385
Origin ASes announcing only one prefix: 15503
Transit ASes present in the Internet Routing Table: 5261
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1611
Unregistered ASNs in the Routing Table: 855
Number of 32-bit ASNs allocated by the RIRs: 1922
Number of 32-bit ASNs visible in the Routing Table: 1579
Prefixes from 32-bit ASNs in the Routing Table: 3676
Special use prefixes present in the Routing Table: 3
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2488981056
Equivalent to 148 /8s, 90 /16s and 214 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 160492
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94724
Total APNIC prefixes after maximum aggregation: 31045
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91176
Unique aggregates announced from the APNIC address blocks: 38235
APNIC Region origin ASes present in the Internet Routing Table: 4594
APNIC Prefixes per ASN: 19.85
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 713
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 101
Number of APNIC addresses announced to Internet: 629367648
Equivalent to 37 /8s, 131 /16s and 99 /24s
Percentage of available APNIC address space announced: 79.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 145919
Total ARIN prefixes after maximum aggregation: 74512
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117821
Unique aggregates announced from the ARIN address blocks: 48241
ARIN Region origin ASes present in the Internet Routing Table: 14744
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5649
ARIN Region transit ASes present in the Internet Routing Table: 1559
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804629248
Equivalent to 47 /8s, 245 /16s and 171 /24s
Percentage of available ARIN address space announced: 63.9
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, 393216-394239
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,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 173/8,
174/8, 184/8, 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: 91523
Total RIPE prefixes after maximum aggregation: 50884
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 84123
Unique aggregates announced from the RIPE address blocks: 54328
RIPE Region origin ASes present in the Internet Routing Table: 16087
RIPE Prefixes per ASN: 5.23
RIPE Region origin ASes announcing only one prefix: 7981
RIPE Region transit ASes present in the Internet Routing Table: 2533
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1102
Number of RIPE addresses announced to Internet: 491304384
Equivalent to 29 /8s, 72 /16s and 181 /24s
Percentage of available RIPE address space announced: 79.1
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
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 35906
Total LACNIC prefixes after maximum aggregation: 7912
LACNIC Deaggregation factor: 4.54
Prefixes being announced from the LACNIC address blocks: 35315
Unique aggregates announced from the LACNIC address blocks: 18494
LACNIC Region origin ASes present in the Internet Routing Table: 1542
LACNIC Prefixes per ASN: 22.90
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 280
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 360
Number of LACNIC addresses announced to Internet: 92763264
Equivalent to 5 /8s, 135 /16s and 116 /24s
Percentage of available LACNIC address space announced: 61.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8559
Total AfriNIC prefixes after maximum aggregation: 2033
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6656
Unique aggregates announced from the AfriNIC address blocks: 1986
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 13.29
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27924736
Equivalent to 1 /8s, 170 /16s and 25 /24s
Percentage of available AfriNIC address space announced: 41.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2513 11129 973 Korea Telecom (KIX)
17974 1627 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1614 303 87 TPG Internet Pty Ltd
4755 1542 637 174 TATA Communications formerly
7552 1393 1064 8 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1093 80 498 Sify Limited
4808 1090 2103 312 CNCGROUP IP network: China169
24560 964 342 218 Bharti Airtel Ltd., Telemedia
18101 954 135 150 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3543 3814 220 bellsouth.net, inc.
7029 2335 1016 198 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1843 680 122 PaeTec Communications, Inc.
4323 1622 1078 388 Time Warner Telecom
20115 1596 1547 621 Charter Communications
22773 1460 2907 100 Cox Communications, Inc.
30036 1396 253 669 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1315 7029 860 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1565 416 14 Corbina telecom
6830 652 1927 414 UPC Distribution Services
34984 595 110 183 BILISIM TELEKOM
20940 532 178 417 Akamai Technologies European
3320 507 8169 387 Deutsche Telekom AG
12479 481 596 9 Uni2 Autonomous System
3292 480 2074 405 TDC Tele Danmark
8866 462 133 26 Bulgarian Telecommunication C
31148 404 22 113 FreeNet ISP
8551 403 354 44 Bezeq International
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1699 314 156 TVCABLE BOGOTA
28573 1472 1043 78 NET Servicos de Comunicao S.A
8151 1427 2929 347 UniNet S.A. de C.V.
7303 1236 751 171 Telecom Argentina Stet-France
27947 591 72 84 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 568 434 68 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 537 233 95 Empresa Nacional de Telecomun
11172 525 86 96 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 800 146 36 LINKdotNET AS number
8452 652 446 12 TEDATA
15475 443 74 8 Nile Online
36992 298 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
29571 218 17 13 Ci Telecom Autonomous system
12258 196 28 57 Vodacom Internet Company
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3543 3814 220 bellsouth.net, inc.
4766 2513 11129 973 Korea Telecom (KIX)
7029 2335 1016 198 Windstream Communications Inc
18566 2094 383 177 Covad Communications
1785 1843 680 122 PaeTec Communications, Inc.
10620 1699 314 156 TVCABLE BOGOTA
17974 1627 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1622 1078 388 Time Warner Telecom
7545 1614 303 87 TPG Internet Pty Ltd
20115 1596 1547 621 Charter Communications
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2335 2137 Windstream Communications Inc
18566 2094 1917 Covad Communications
1785 1843 1721 PaeTec Communications, Inc.
17974 1627 1591 PT TELEKOMUNIKASI INDONESIA
8402 1565 1551 Corbina telecom
10620 1699 1543 TVCABLE BOGOTA
4766 2513 1540 Korea Telecom (KIX)
7545 1614 1527 TPG Internet Pty Ltd
28573 1472 1394 NET Servicos de Comunicao S.A
7552 1393 1385 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.0.0/16 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/current/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 /8:19 /9:12 /10:27 /11:81 /12:236
/13:465 /14:809 /15:1422 /16:12022 /17:6065 /18:10090
/19:19950 /20:27579 /21:27643 /22:37165 /23:35208 /24:198257
/25:1157 /26:1351 /27:758 /28:166 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2183 3543 bellsouth.net, inc.
18566 2043 2094 Covad Communications
7029 2003 2335 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1540 1565 Corbina telecom
30036 1357 1396 Mediacom Communications Corp
11492 1117 1155 Cable One
1785 1056 1843 PaeTec Communications, Inc.
7011 1050 1168 Citizens Utilities
22773 948 1460 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:415 2:493 4:15 5:1 6:3 8:361
12:1954 13:1 14:540 15:11 16:3 17:7
20:9 23:59 24:1681 27:972 31:663 32:61
33:2 34:2 36:4 38:757 40:110 41:2690
42:54 44:3 46:1021 47:3 49:299 50:441
52:13 55:7 56:2 57:47 58:902 59:494
60:361 61:1121 62:1088 63:1965 64:4061 65:2301
66:4275 67:2000 68:1155 69:3188 70:882 71:384
72:1804 74:2606 75:393 76:318 77:881 78:885
79:475 80:1136 81:842 82:523 83:528 84:622
85:1148 86:399 87:928 88:356 89:1601 90:237
91:4251 92:537 93:1552 94:1303 95:1123 96:427
97:286 98:932 99:37 101:226 103:422 106:70
107:82 108:72 109:1160 110:661 111:794 112:341
113:484 114:621 115:708 116:882 117:722 118:874
119:1269 120:340 121:693 122:1563 123:1011 124:1351
125:1354 128:244 129:190 130:164 131:624 132:148
133:21 134:221 135:54 136:213 137:140 138:286
139:123 140:487 141:316 142:387 143:415 144:492
145:64 146:465 147:219 148:638 149:267 150:165
151:194 152:446 153:178 154:7 155:389 156:208
157:360 158:154 159:485 160:333 161:214 162:371
163:173 164:511 165:369 166:541 167:434 168:743
169:145 170:880 171:86 172:4 173:1707 174:678
175:420 176:287 177:364 178:1073 180:1135 181:38
182:647 183:222 184:385 185:1 186:1325 187:778
188:1008 189:1129 190:5159 192:5933 193:5048 194:3558
195:3109 196:1247 197:166 198:3624 199:4165 200:5516
201:1688 202:8572 203:8486 204:4306 205:2364 206:2673
207:2822 208:4028 209:3584 210:2723 211:1458 212:2077
213:1783 214:808 215:96 216:4924 217:1600 218:564
219:341 220:1255 221:517 222:322 223:265
End of report