Routing Table Report 04:00 +10GMT Mon 14 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 345922
Prefixes after maximum aggregation: 155845
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 171018
Total ASes present in the Internet Routing Table: 35863
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 30910
Origin ASes announcing only one prefix: 14962
Transit ASes present in the Internet Routing Table: 4953
Transit-only ASes present in the Internet Routing Table: 123
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 30
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 335
Unregistered ASNs in the Routing Table: 133
Number of 32-bit ASNs allocated by the RIRs: 1117
Prefixes from 32-bit ASNs in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 200
Number of addresses announced to Internet: 2393265248
Equivalent to 142 /8s, 166 /16s and 84 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 143074
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85355
Total APNIC prefixes after maximum aggregation: 28885
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 82142
Unique aggregates announced from the APNIC address blocks: 35760
APNIC Region origin ASes present in the Internet Routing Table: 4317
APNIC Prefixes per ASN: 19.03
APNIC Region origin ASes announcing only one prefix: 1201
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 589023008
Equivalent to 35 /8s, 27 /16s and 199 /24s
Percentage of available APNIC address space announced: 74.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 139246
Total ARIN prefixes after maximum aggregation: 71222
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 110141
Unique aggregates announced from the ARIN address blocks: 44892
ARIN Region origin ASes present in the Internet Routing Table: 14204
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5420
ARIN Region transit ASes present in the Internet Routing Table: 1474
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 786614176
Equivalent to 46 /8s, 226 /16s and 199 /24s
Percentage of available ARIN address space announced: 62.5
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: 82075
Total RIPE prefixes after maximum aggregation: 46478
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75305
Unique aggregates announced from the RIPE address blocks: 48859
RIPE Region origin ASes present in the Internet Routing Table: 15297
RIPE Prefixes per ASN: 4.92
RIPE Region origin ASes announcing only one prefix: 7775
RIPE Region transit ASes present in the Internet Routing Table: 2374
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 459020096
Equivalent to 27 /8s, 92 /16s and 23 /24s
Percentage of available RIPE address space announced: 73.9
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: 31645
Total LACNIC prefixes after maximum aggregation: 7340
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 30397
Unique aggregates announced from the LACNIC address blocks: 15928
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.30
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 258
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80693888
Equivalent to 4 /8s, 207 /16s and 74 /24s
Percentage of available LACNIC address space announced: 53.4
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: 7378
Total AfriNIC prefixes after maximum aggregation: 1808
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 5789
Unique aggregates announced from the AfriNIC address blocks: 1832
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.31
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 21857280
Equivalent to 1 /8s, 77 /16s and 132 /24s
Percentage of available AfriNIC address space announced: 32.6
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 1991 9487 584 Korea Telecom (KIX)
7545 1633 301 84 TPG Internet Pty Ltd
4755 1412 633 161 TATA Communications formerly
17974 1397 459 29 PT TELEKOMUNIKASI INDONESIA
24560 1109 323 181 Bharti Airtel Ltd., Telemedia
4808 1042 2142 294 CNCGROUP IP network: China169
9583 1042 76 487 Sify Limited
17488 952 162 104 Hathway IP Over Cable Interne
18101 929 117 144 Reliance Infocom Ltd Internet
9829 898 763 42 BSNL National Internet Backbo
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 3700 3855 262 bellsouth.net, inc.
4323 2625 1109 403 Time Warner Telecom
19262 1842 4951 283 Verizon Global Networks
1785 1785 697 131 PaeTec Communications, Inc.
20115 1528 1534 646 Charter Communications
6478 1516 298 48 AT&T Worldnet Services
7018 1356 6674 873 AT&T WorldNet Services
2386 1298 553 935 AT&T Data Communications Serv
11492 1282 236 73 Cable One
18566 1282 311 104 Covad Communications
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
6830 511 1764 316 UPC Distribution Services
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 456 97 137 BILISIM TELEKOM
3292 445 1996 387 TDC Tele Danmark
8866 440 133 23 Bulgarian Telecommunication C
3320 406 7620 355 Deutsche Telekom AG
8551 403 353 46 Bezeq International
20940 401 93 308 Akamai Technologies European
702 395 1800 308 UUNET - Commercial IP service
3301 383 1822 341 TeliaNet Sweden
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 1371 255 165 TVCABLE BOGOTA
8151 1341 2664 359 UniNet S.A. de C.V.
28573 1239 961 82 NET Servicos de Comunicao S.A
6503 1189 355 78 AVANTEL, S.A.
7303 892 447 142 Telecom Argentina Stet-France
14420 639 57 93 CORPORACION NACIONAL DE TELEC
22047 543 310 15 VTR PUNTO NET S.A.
3816 505 220 95 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 457 34 32 Telefonica del Sur 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
24863 763 147 39 LINKdotNET AS number
8452 722 445 11 TEDATA
36992 589 305 17 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
15475 194 56 9 Nile Online
33776 194 12 15 Starcomms Nigeria Limited
29571 193 19 11 Ci Telecom Autonomous system
16637 147 422 83 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 3700 3855 262 bellsouth.net, inc.
4323 2625 1109 403 Time Warner Telecom
4766 1991 9487 584 Korea Telecom (KIX)
19262 1842 4951 283 Verizon Global Networks
1785 1785 697 131 PaeTec Communications, Inc.
7545 1633 301 84 TPG Internet Pty Ltd
20115 1528 1534 646 Charter Communications
6478 1516 298 48 AT&T Worldnet Services
4755 1412 633 161 TATA Communications formerly
17974 1397 459 29 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2625 2222 Time Warner Telecom
1785 1785 1654 PaeTec Communications, Inc.
19262 1842 1559 Verizon Global Networks
7545 1633 1549 TPG Internet Pty Ltd
6478 1516 1468 AT&T Worldnet Services
4766 1991 1407 Korea Telecom (KIX)
17974 1397 1368 PT TELEKOMUNIKASI INDONESIA
4755 1412 1251 TATA Communications formerly
11492 1282 1209 Cable One
10620 1371 1206 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
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 /8:21 /9:10 /10:26 /11:72 /12:215
/13:444 /14:764 /15:1362 /16:11490 /17:5641 /18:9311
/19:18827 /20:24350 /21:24799 /22:32960 /23:31635 /24:181162
/25:985 /26:1080 /27:573 /28:168 /29:16 /30:3
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2282 3700 bellsouth.net, inc.
6478 1470 1516 AT&T Worldnet Services
4323 1414 2625 Time Warner Telecom
10620 1262 1371 TVCABLE BOGOTA
18566 1260 1282 Covad Communications
11492 1239 1282 Cable One
7011 1060 1163 Citizens Utilities
1785 1054 1785 PaeTec Communications, Inc.
6503 966 1189 AVANTEL, S.A.
19262 954 1842 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:176 2:44 4:13 5:1 8:331 12:2029
13:1 14:412 15:15 16:3 17:8 20:9
23:1 24:1485 27:582 32:60 33:5 34:2
37:1 38:703 40:101 41:2248 44:3 46:636
47:5 49:144 50:90 52:12 55:5 56:2
57:32 58:853 59:477 60:390 61:1113 62:1070
63:1943 64:3784 65:2355 66:4166 67:1763 68:1027
69:2897 70:738 71:400 72:1986 73:1 74:2323
75:292 76:345 77:863 78:705 79:448 80:1047
81:824 82:540 83:465 84:652 85:1052 86:557
87:742 88:355 89:1585 90:156 91:3466 92:495
93:1042 94:1199 95:756 96:428 97:251 98:790
99:33 101:27 107:3 108:88 109:955 110:473
111:694 112:311 113:362 114:502 115:642 116:934
117:679 118:665 119:1018 120:240 121:702 122:1639
123:1062 124:1270 125:1225 128:264 129:153 130:172
131:570 132:109 133:20 134:217 135:49 136:216
137:147 138:291 139:118 140:492 141:196 142:358
143:383 144:484 145:51 146:431 147:199 148:635
149:274 150:155 151:229 152:306 153:179 154:3
155:349 156:176 157:340 158:129 159:380 160:315
161:205 162:274 163:159 164:486 165:339 166:499
167:422 168:741 169:151 170:752 171:69 172:2
173:1298 174:519 175:316 176:1 177:4 178:757
180:803 182:351 183:251 184:211 186:995 187:821
188:989 189:1035 190:4365 192:5801 193:4796 194:3500
195:2959 196:1176 197:3 198:3573 199:3823 200:5552
201:1580 202:8276 203:8439 204:4112 205:2333 206:2628
207:3083 208:3901 209:3497 210:2653 211:1336 212:1889
213:1729 214:757 215:62 216:4885 217:1615 218:532
219:376 220:1203 221:449 222:318 223:97
End of report
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