Routing Table Report 08:00 +10GMT Fri 23 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 367622
Prefixes after maximum aggregation: 166238
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 185013
Total ASes present in the Internet Routing Table: 37283
Prefixes per ASN: 9.86
Origin-only ASes present in the Internet Routing Table: 32177
Origin ASes announcing only one prefix: 15492
Transit ASes present in the Internet Routing Table: 5106
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2689
Unregistered ASNs in the Routing Table: 841
Number of 32-bit ASNs allocated by the RIRs: 1757
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3267
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2496577024
Equivalent to 148 /8s, 206 /16s and 190 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.4
Total number of prefixes smaller than registry allocations: 152166
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88897
Total APNIC prefixes after maximum aggregation: 29431
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86356
Unique aggregates announced from the APNIC address blocks: 38209
APNIC Region origin ASes present in the Internet Routing Table: 4527
APNIC Prefixes per ASN: 19.08
APNIC Region origin ASes announcing only one prefix: 1273
APNIC Region transit ASes present in the Internet Routing Table: 689
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 627407616
Equivalent to 37 /8s, 101 /16s and 123 /24s
Percentage of available APNIC address space announced: 79.6
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: 142526
Total ARIN prefixes after maximum aggregation: 73323
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114937
Unique aggregates announced from the ARIN address blocks: 48118
ARIN Region origin ASes present in the Internet Routing Table: 14608
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5644
ARIN Region transit ASes present in the Internet Routing Table: 1489
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: 804897024
Equivalent to 47 /8s, 249 /16s and 193 /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: 89487
Total RIPE prefixes after maximum aggregation: 50204
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 82249
Unique aggregates announced from the RIPE address blocks: 53956
RIPE Region origin ASes present in the Internet Routing Table: 15973
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7971
RIPE Region transit ASes present in the Internet Routing Table: 2501
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 489613568
Equivalent to 29 /8s, 46 /16s and 233 /24s
Percentage of available RIPE address space announced: 78.9
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: 34344
Total LACNIC prefixes after maximum aggregation: 7667
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 33799
Unique aggregates announced from the LACNIC address blocks: 17889
LACNIC Region origin ASes present in the Internet Routing Table: 1512
LACNIC Prefixes per ASN: 22.35
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 89160448
Equivalent to 5 /8s, 80 /16s and 123 /24s
Percentage of available LACNIC address space announced: 59.0
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: 8399
Total AfriNIC prefixes after maximum aggregation: 1999
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6502
Unique aggregates announced from the AfriNIC address blocks: 1986
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.43
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 27326208
Equivalent to 1 /8s, 160 /16s and 247 /24s
Percentage of available AfriNIC address space announced: 40.7
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 1940 11040 649 Korea Telecom (KIX)
17974 1701 516 31 PT Telekomunikasi Indonesia
7545 1596 303 86 TPG Internet Pty Ltd
4755 1547 379 166 TATA Communications formerly
24560 1182 337 194 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 National Internet Backbone
9583 1084 80 501 Sify Limited
7552 1001 1062 11 Vietel Corporation
4808 958 2003 270 CNCGROUP IP network China169
18101 951 118 141 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 3561 3817 227 BellSouth.net Inc.
18566 1911 364 236 Covad Communications Co.
1785 1828 680 123 PaeTec Communications, Inc.
7029 1740 1033 206 Windstream Communications Inc
4323 1625 1101 395 tw telecom holdings, inc.
20115 1595 1543 633 Charter Communications
22773 1461 2907 99 Cox Communications Inc.
30036 1417 263 678 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1343 7084 880 AT&T Services, 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
8402 748 352 13 Corbina telecom
34984 565 108 180 BILISIM TELEKOM
20940 543 182 421 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
6830 532 1813 325 UPC Broadband
3320 492 8167 380 Deutsche Telekom AG
3292 478 2082 408 TDC Data Networks
12479 476 594 8 France Telecom Espana SA
8866 461 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
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 1679 309 156 Types of queries are: POCs, o
28573 1335 1013 70 Types of queries are: POCs, o
8151 1276 2787 345 Uninet S.A. de C.V.
7303 1156 678 170 Telecom Argentina S.A.
14420 734 58 88 CORPORACION NACIONAL DE TELEC
22047 580 322 17 Types of queries are: POCs, o
6503 568 450 70 Axtel, S.A.B. de C.V.
27947 558 56 76 Telconet S.A
3816 537 232 99 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
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
24863 809 147 41 LINKdotNET AS number
8452 708 445 11 TEDATA
15475 451 74 8 Nile Online
36992 293 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
29571 190 17 11 Ci Telecom Autonomous system
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 3561 3817 227 BellSouth.net Inc.
23456 3267 774 1764 32-bit ASN transition
4766 1940 11040 649 Korea Telecom (KIX)
18566 1911 364 236 Covad Communications Co.
1785 1828 680 123 PaeTec Communications, Inc.
7029 1740 1033 206 Windstream Communications Inc
17974 1701 516 31 PT Telekomunikasi Indonesia
10620 1679 309 156 Types of queries are: POCs, o
4323 1625 1101 395 tw telecom holdings, inc.
7545 1596 303 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1828 1705 PaeTec Communications, Inc.
18566 1911 1675 Covad Communications Co.
17974 1701 1670 PT Telekomunikasi Indonesia
7029 1740 1534 Windstream Communications Inc
10620 1679 1523 Types of queries are: POCs, o
7545 1596 1510 TPG Internet Pty Ltd
23456 3267 1503 32-bit ASN transition
4755 1547 1381 TATA Communications formerly
22773 1461 1362 Cox Communications Inc.
4766 1940 1291 Korea Telecom (KIX)
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
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.
26973 UNALLOCATED 12.39.152.0/24 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
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<<
46.18.104.0/21 23456 32-bit ASN transition
50.115.224.0/20 27257 Webair Internet Development C
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 /9:12 /10:27 /11:81 /12:236
/13:464 /14:800 /15:1415 /16:11948 /17:5961 /18:9989
/19:19907 /20:27014 /21:26982 /22:36165 /23:34532 /24:191551
/25:12 /26:20 /27:23 /28:155 /29:123 /30:59
/31:0 /32:126
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2197 3561 BellSouth.net Inc.
18566 1868 1911 Covad Communications Co.
10620 1574 1679 Types of queries are: POCs, o
23456 1553 3267 32-bit ASN transition
7029 1421 1740 Windstream Communications Inc
30036 1374 1417 Mediacom Communications Corp
11492 1111 1148 CABLE ONE, INC.
7011 1058 1183 Frontier Communications of Am
1785 1053 1828 PaeTec Communications, Inc.
22773 950 1461 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:376 2:201 4:15 5:1 6:3 8:349
12:1956 13:1 14:533 15:13 16:3 17:7
20:10 23:35 24:1678 27:940 31:541 32:59
33:4 34:2 36:4 38:738 40:108 41:2533
42:48 44:3 46:985 47:3 49:251 50:420
52:13 54:2 55:7 56:2 57:34 58:825
59:489 60:374 61:1017 62:1094 63:1932 64:4027
65:2301 66:3957 67:1947 68:1108 69:3185 70:811
71:377 72:1857 74:2457 75:348 76:340 77:871
78:748 79:486 80:1127 81:842 82:510 83:523
84:622 85:1088 86:415 87:872 88:353 89:1554
90:267 91:4116 92:532 93:1245 94:1323 95:832
96:431 97:276 98:929 99:37 101:84 103:313
106:70 107:52 108:78 109:1023 110:631 111:778
112:314 113:401 114:552 115:668 116:876 117:672
118:857 119:1197 120:331 121:669 122:1596 123:999
124:1301 125:1334 128:206 129:172 130:160 131:575
132:112 133:21 134:208 135:53 136:210 137:136
138:288 139:107 140:471 141:278 142:370 143:406
144:478 145:59 146:465 147:215 148:619 149:257
150:146 151:191 152:446 153:177 154:5 155:394
156:197 157:328 158:145 159:393 160:324 161:198
162:336 163:166 164:506 165:371 166:535 167:433
168:745 169:144 170:860 171:84 172:1 173:1652
174:645 175:398 176:202 177:276 178:1014 180:1071
181:30 182:614 183:215 184:380 185:1 186:1452
187:669 188:938 189:851 190:5145 192:5869 193:5018
194:3526 195:3062 196:1227 197:176 198:3534 199:4086
200:5448 201:1633 202:8243 203:8357 204:4188 205:2319
206:2588 207:2758 208:4017 209:3445 210:2629 211:1460
212:2101 213:1778 214:778 215:76 216:4849 217:1607
218:543 219:334 220:1189 221:497 222:294 223:259
End of report
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