Routing Table Report 04:00 +10GMT Sun 19 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 397927
Prefixes after maximum aggregation: 169856
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 192470
Total ASes present in the Internet Routing Table: 40133
Prefixes per ASN: 9.92
Origin-only ASes present in the Internet Routing Table: 32761
Origin ASes announcing only one prefix: 15511
Transit ASes present in the Internet Routing Table: 5393
Transit-only ASes present in the Internet Routing Table: 143
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: 323
Unregistered ASNs in the Routing Table: 126
Number of 32-bit ASNs allocated by the RIRs: 2284
Number of 32-bit ASNs visible in the Routing Table: 1979
Prefixes from 32-bit ASNs in the Routing Table: 4775
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 232
Number of addresses announced to Internet: 2515992656
Equivalent to 149 /8s, 247 /16s and 0 /24s
Percentage of available address space announced: 67.9
Percentage of allocated address space announced: 67.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 169103
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98050
Total APNIC prefixes after maximum aggregation: 31798
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94356
Unique aggregates announced from the APNIC address blocks: 39132
APNIC Region origin ASes present in the Internet Routing Table: 4657
APNIC Prefixes per ASN: 20.26
APNIC Region origin ASes announcing only one prefix: 1236
APNIC Region transit ASes present in the Internet Routing Table: 736
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 148
Number of APNIC addresses announced to Internet: 636132192
Equivalent to 37 /8s, 234 /16s and 155 /24s
Percentage of available APNIC address space announced: 80.7
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: 148325
Total ARIN prefixes after maximum aggregation: 75284
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120260
Unique aggregates announced from the ARIN address blocks: 49502
ARIN Region origin ASes present in the Internet Routing Table: 14903
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5676
ARIN Region transit ASes present in the Internet Routing Table: 1571
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805143232
Equivalent to 47 /8s, 253 /16s and 130 /24s
Percentage of available ARIN address space announced: 64.0
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: 99124
Total RIPE prefixes after maximum aggregation: 52513
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 90871
Unique aggregates announced from the RIPE address blocks: 56057
RIPE Region origin ASes present in the Internet Routing Table: 16317
RIPE Prefixes per ASN: 5.57
RIPE Region origin ASes announcing only one prefix: 7993
RIPE Region transit ASes present in the Internet Routing Table: 2601
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: 1357
Number of RIPE addresses announced to Internet: 501188104
Equivalent to 29 /8s, 223 /16s and 134 /24s
Percentage of available RIPE address space announced: 80.7
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: 38584
Total LACNIC prefixes after maximum aggregation: 8095
LACNIC Deaggregation factor: 4.77
Prefixes being announced from the LACNIC address blocks: 38252
Unique aggregates announced from the LACNIC address blocks: 19524
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 24.32
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 291
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 455
Number of LACNIC addresses announced to Internet: 96611720
Equivalent to 5 /8s, 194 /16s and 45 /24s
Percentage of available LACNIC address space announced: 64.0
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: 8896
Total AfriNIC prefixes after maximum aggregation: 2080
AfriNIC Deaggregation factor: 4.28
Prefixes being announced from the AfriNIC address blocks: 6933
Unique aggregates announced from the AfriNIC address blocks: 2151
AfriNIC Region origin ASes present in the Internet Routing Table: 509
AfriNIC Prefixes per ASN: 13.62
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.4
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: 30942464
Equivalent to 1 /8s, 216 /16s and 37 /24s
Percentage of available AfriNIC address space announced: 46.1
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 2485 11107 989 Korea Telecom (KIX)
17974 1729 501 36 PT TELEKOMUNIKASI INDONESIA
7545 1643 303 86 TPG Internet Pty Ltd
4755 1547 385 159 TATA Communications formerly
7552 1265 1064 7 Vietel Corporation
9829 1178 997 29 BSNL National Internet Backbo
4808 1149 2114 318 CNCGROUP IP network: China169
9583 1125 84 483 Sify Limited
24560 1019 385 167 Bharti Airtel Ltd., Telemedia
18101 949 130 155 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 3440 3807 201 bellsouth.net, inc.
7029 3410 1014 159 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1869 679 124 PaeTec Communications, Inc.
20115 1627 1550 630 Charter Communications
4323 1606 1043 381 Time Warner Telecom
22773 1527 2910 110 Cox Communications, Inc.
30036 1405 251 748 Mediacom Communications Corp
19262 1388 4703 397 Verizon Global Networks
7018 1305 6979 846 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 1747 480 15 Corbina telecom
2118 1399 97 13 EUnet/RELCOM Autonomous Syste
15557 1098 2184 60 LDCOM NETWORKS
34984 653 188 173 BILISIM TELEKOM
6830 644 1927 413 UPC Distribution Services
20940 615 198 472 Akamai Technologies European
12479 605 643 54 Uni2 Autonomous System
8551 576 360 81 Bezeq International
31148 538 37 9 FreeNet ISP
3320 533 8450 399 Deutsche Telekom AG
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 1744 323 172 TVCABLE BOGOTA
28573 1671 1085 65 NET Servicos de Comunicao S.A
8151 1478 3007 350 UniNet S.A. de C.V.
7303 1264 758 183 Telecom Argentina Stet-France
26615 834 668 34 Tim Brasil S.A.
27947 660 67 108 Telconet S.A
11172 631 91 73 Servicios Alestra S.A de C.V
22047 581 322 17 VTR PUNTO NET S.A.
3816 552 237 91 Empresa Nacional de Telecomun
6503 552 418 66 AVANTEL, S.A.
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
8452 1235 958 13 TEDATA
24863 830 156 44 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 278 939 229 The Internet Solution
33776 233 12 16 Starcomms Nigeria Limited
15706 222 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
16637 163 664 82 MTN Network Solutions
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 3440 3807 201 bellsouth.net, inc.
7029 3410 1014 159 Windstream Communications Inc
4766 2485 11107 989 Korea Telecom (KIX)
18566 2091 382 177 Covad Communications
1785 1869 679 124 PaeTec Communications, Inc.
8402 1747 480 15 Corbina telecom
10620 1744 323 172 TVCABLE BOGOTA
17974 1729 501 36 PT TELEKOMUNIKASI INDONESIA
28573 1671 1085 65 NET Servicos de Comunicao S.A
7545 1643 303 86 TPG Internet Pty Ltd
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 3410 3251 Windstream Communications Inc
18566 2091 1914 Covad Communications
1785 1869 1745 PaeTec Communications, Inc.
8402 1747 1732 Corbina telecom
17974 1729 1693 PT TELEKOMUNIKASI INDONESIA
28573 1671 1606 NET Servicos de Comunicao S.A
10620 1744 1572 TVCABLE BOGOTA
7545 1643 1557 TPG Internet Pty Ltd
4766 2485 1496 Korea Telecom (KIX)
22773 1527 1417 Cox Communications, Inc.
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
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/16 18779 Guru.com
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /11:80 /12:231
/13:458 /14:814 /15:1473 /16:12146 /17:6211 /18:10349
/19:20461 /20:28272 /21:29283 /22:39889 /23:37022 /24:207548
/25:1180 /26:1425 /27:770 /28:168 /29:57 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3066 3410 Windstream Communications Inc
6389 2110 3440 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1726 1747 Corbina telecom
10620 1641 1744 TVCABLE BOGOTA
30036 1356 1405 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1064 1869 PaeTec Communications, Inc.
8452 1045 1235 TEDATA
15557 1045 1098 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:506 2:719 4:14 5:1 6:3 8:385
12:1957 13:1 14:599 15:11 16:3 17:7
20:8 23:135 24:1731 27:1194 31:935 32:65
33:2 34:2 36:9 37:185 38:779 40:115
41:3114 42:96 43:1 44:3 46:1301 47:3
49:331 50:502 52:13 54:2 55:10 56:3
57:38 58:967 59:495 60:344 61:1195 62:948
63:2005 64:4149 65:2283 66:4451 67:2035 68:1173
69:3164 70:934 71:414 72:1795 74:2656 75:467
76:320 77:978 78:949 79:483 80:1212 81:877
82:607 83:523 84:583 85:1152 86:742 87:913
88:338 89:1556 90:282 91:4475 92:527 93:1349
94:1376 95:1107 96:419 97:312 98:820 99:38
100:4 101:145 103:800 106:65 107:157 108:168
109:1488 110:695 111:851 112:437 113:530 114:603
115:765 116:866 117:710 118:903 119:1254 120:362
121:688 122:1624 123:1086 124:1333 125:1324 128:539
129:190 130:216 131:584 132:165 133:21 134:234
135:62 136:211 137:176 138:286 139:145 140:490
141:264 142:395 143:400 144:506 145:69 146:484
147:238 148:732 149:282 150:163 151:198 152:447
153:170 154:7 155:390 156:212 157:366 158:160
159:512 160:321 161:244 162:331 163:186 164:530
165:390 166:559 167:458 168:761 169:147 170:836
171:114 172:4 173:1722 174:596 175:417 176:497
177:505 178:1273 180:1180 181:67 182:727 183:279
184:431 185:1 186:1989 187:863 188:1071 189:1179
190:5515 192:5980 193:5533 194:4341 195:3403 196:1273
197:166 198:3617 199:4397 200:5679 201:1740 202:8415
203:8635 204:4368 205:2427 206:2741 207:2783 208:4071
209:3554 210:2764 211:1482 212:2013 213:1839 214:848
215:90 216:5030 217:1486 218:551 219:338 220:1225
221:561 222:324 223:313
End of report