Routing Table Report 08:00 +10GMT Wed 30 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 346635
Prefixes after maximum aggregation: 157625
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 173558
Total ASes present in the Internet Routing Table: 36007
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31130
Origin ASes announcing only one prefix: 14985
Transit ASes present in the Internet Routing Table: 4877
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (42805) 21
Prefixes from unregistered ASNs in the Routing Table: 1906
Unregistered ASNs in the Routing Table: 332
Number of 32-bit ASNs allocated by the RIRs: 1239
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2022
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 190
Number of addresses announced to Internet: 2408508928
Equivalent to 143 /8s, 142 /16s and 238 /24s
Percentage of available address space announced: 65.0
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.8
Total number of prefixes smaller than registry allocations: 141949
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83742
Total APNIC prefixes after maximum aggregation: 28499
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 81460
Unique aggregates announced from the APNIC address blocks: 36575
APNIC Region origin ASes present in the Internet Routing Table: 4321
APNIC Prefixes per ASN: 18.85
APNIC Region origin ASes announcing only one prefix: 1217
APNIC Region transit ASes present in the Internet Routing Table: 666
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 600312320
Equivalent to 35 /8s, 200 /16s and 10 /24s
Percentage of available APNIC address space announced: 76.1
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: 137427
Total ARIN prefixes after maximum aggregation: 70341
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110207
Unique aggregates announced from the ARIN address blocks: 44958
ARIN Region origin ASes present in the Internet Routing Table: 14202
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5424
ARIN Region transit ASes present in the Internet Routing Table: 1413
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 797259264
Equivalent to 47 /8s, 133 /16s and 54 /24s
Percentage of available ARIN address space announced: 63.4
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: 83295
Total RIPE prefixes after maximum aggregation: 47352
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76622
Unique aggregates announced from the RIPE address blocks: 50118
RIPE Region origin ASes present in the Internet Routing Table: 15438
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7769
RIPE Region transit ASes present in the Internet Routing Table: 2389
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 465292288
Equivalent to 27 /8s, 187 /16s and 204 /24s
Percentage of available RIPE address space announced: 75.0
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: 31798
Total LACNIC prefixes after maximum aggregation: 7314
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 30873
Unique aggregates announced from the LACNIC address blocks: 16207
LACNIC Region origin ASes present in the Internet Routing Table: 1430
LACNIC Prefixes per ASN: 21.59
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 81479936
Equivalent to 4 /8s, 219 /16s and 73 /24s
Percentage of available LACNIC address space announced: 54.0
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: 7626
Total AfriNIC prefixes after maximum aggregation: 1810
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 5993
Unique aggregates announced from the AfriNIC address blocks: 1852
AfriNIC Region origin ASes present in the Internet Routing Table: 438
AfriNIC Prefixes per ASN: 13.68
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 22678272
Equivalent to 1 /8s, 90 /16s and 11 /24s
Percentage of available AfriNIC address space announced: 33.8
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 1863 9501 598 Korea Telecom (KIX)
7545 1541 301 84 TPG Internet Pty Ltd
4755 1481 653 159 TATA Communications formerly
17974 1459 472 34 PT Telekomunikasi Indonesia
24560 1135 322 204 Bharti Airtel Ltd., Telemedia
9583 1055 77 494 Sify Limited
9829 1002 868 53 National Internet Backbone
4808 947 2034 278 CNCGROUP IP network China169
17488 936 162 97 Hathway IP Over Cable Interne
18101 935 116 139 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3672 3838 263 BellSouth.net Inc.
4323 2566 1109 402 tw telecom holdings, inc.
1785 1789 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1582 303 39 AT&T Services, Inc.
20115 1527 1539 647 Charter Communications
19262 1489 4935 303 Verizon Online LLC
7018 1373 6964 899 AT&T Services, Inc.
11492 1320 240 15 CABLE ONE, INC.
22773 1287 2865 80 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9116 541 326 30 Goldenlines main autonomous s
6830 512 1780 317 UPC Broadband
34984 474 96 198 BILISIM TELEKOM
3292 455 2013 392 TDC Data Networks
8866 443 133 24 Bulgarian Telecommunication C
9198 424 267 15 Kazakhtelecom Data Network Ad
20940 417 99 324 Akamai Technologies European
3320 411 7604 358 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 398 1803 312 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1403 262 152 Types of queries are: POCs, o
28573 1238 971 84 Types of queries are: POCs, o
8151 1229 2655 364 Uninet S.A. de C.V.
6503 1109 354 74 Axtel, S.A.B. de C.V.
7303 901 464 136 Telecom Argentina S.A.
14420 641 52 93 CORPORACION NACIONAL DE TELEC
22047 567 310 15 Types of queries are: POCs, o
3816 516 225 97 Types of queries are: POCs, o
13489 493 217 107 EPM Telecomunicaciones S.A. E
11172 485 99 80 Alestra, S. de R.L. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 843 445 11 TEDATA
24863 770 147 36 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 298 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
33776 230 13 5 Starcomms Nigeria Limited
6713 214 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 147 441 86 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3672 3838 263 BellSouth.net Inc.
4323 2566 1109 402 tw telecom holdings, inc.
23456 2022 495 1105 32-bit ASN transition
4766 1863 9501 598 Korea Telecom (KIX)
1785 1789 681 131 PaeTec Communications, Inc.
18566 1597 330 198 Covad Communications Co.
6478 1582 303 39 AT&T Services, Inc.
7545 1541 301 84 TPG Internet Pty Ltd
20115 1527 1539 647 Charter Communications
19262 1489 4935 303 Verizon Online LLC
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2566 2164 tw telecom holdings, inc.
1785 1789 1658 PaeTec Communications, Inc.
6478 1582 1543 AT&T Services, Inc.
7545 1541 1457 TPG Internet Pty Ltd
17974 1459 1425 PT Telekomunikasi Indonesia
18566 1597 1399 Covad Communications Co.
4755 1481 1322 TATA Communications formerly
11492 1320 1305 CABLE ONE, INC.
4766 1863 1265 Korea Telecom (KIX)
10620 1403 1251 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 65535 Internet Assigned Numbers Aut
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
1.3.0.0/16 38639 for assignment to JPNIC membe
2.56.0.0/16 44559 E-Rent LLC
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
31.22.80.0/21 8455 ATOM86 Autonomous System
41.57.192.0/18 22750 BCSNET
Complete listing at http://thyme.rand.apnic.net/london/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 /8:20 /9:11 /10:26 /11:74 /12:218
/13:447 /14:765 /15:1371 /16:11545 /17:5672 /18:9385
/19:19168 /20:24792 /21:25169 /22:33547 /23:31955 /24:182004
/25:11 /26:16 /27:24 /28:156 /29:96 /30:51
/31:0 /32:112
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2265 3672 BellSouth.net Inc.
18566 1576 1597 Covad Communications Co.
6478 1536 1582 AT&T Services, Inc.
4323 1375 2566 tw telecom holdings, inc.
10620 1293 1403 Types of queries are: POCs, o
11492 1269 1320 CABLE ONE, INC.
23456 1088 2022 32-bit ASN transition
7011 1063 1164 Frontier Communications of Am
1785 1056 1789 PaeTec Communications, Inc.
6503 892 1109 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:292 2:58 4:14 5:1 8:347 12:2021
13:1 14:412 15:15 16:3 17:8 20:9
23:5 24:1587 27:697 31:21 32:56 33:3
34:2 37:1 38:744 39:1 40:101 41:2376
44:3 46:773 47:4 49:142 50:128 52:13
55:4 56:2 57:27 58:770 59:494 60:385
61:1067 62:1006 63:1907 64:3853 65:2352 66:4353
67:1803 68:1076 69:2918 70:694 71:343 72:1896
73:1 74:2329 75:284 76:337 77:849 78:696
79:453 80:1097 81:823 82:515 83:466 84:649
85:1030 86:553 87:768 88:343 89:1563 90:175
91:3655 92:508 93:1043 94:1228 95:779 96:451
97:251 98:810 99:35 101:41 106:1 107:4
108:80 109:925 110:516 111:672 112:319 113:386
114:495 115:711 116:916 117:655 118:742 119:1086
120:284 121:737 122:1603 123:1043 124:1296 125:1255
128:214 129:165 130:167 131:563 132:101 133:20
134:208 135:49 136:210 137:139 138:300 139:103
140:464 141:173 142:364 143:387 144:478 145:52
146:435 147:196 148:614 149:260 150:158 151:187
152:296 153:180 154:2 155:389 156:182 157:319
158:131 159:373 160:316 161:199 162:277 163:155
164:493 165:348 166:502 167:411 168:717 169:153
170:779 171:70 172:2 173:1252 174:531 175:338
177:75 178:763 180:786 181:4 182:399 183:193
184:233 185:1 186:1104 187:901 188:920 189:1032
190:4692 192:5721 193:4789 194:3480 195:2948 196:1213
197:15 198:3532 199:3846 200:5523 201:1480 202:8157
203:8338 204:4040 205:2296 206:2544 207:2951 208:3899
209:3469 210:2645 211:1354 212:1989 213:1708 214:767
215:66 216:4849 217:1638 218:545 219:379 220:1188
221:460 222:307 223:97
End of report
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