The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Wednesday, December 18, 2013

[bgp-stats] Routing Table Report - Washington view

* BGP Routing Table Analysis Reports *
Routing Table Report 09:00 +10GMT Thu 19 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/us/

Analysis Summary
----------------

BGP routing table entries examined: 468392
Prefixes after maximum aggregation: 188765
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 235633
Total ASes present in the Internet Routing Table: 45600
Prefixes per ASN: 10.27
Origin-only ASes present in the Internet Routing Table: 35479
Origin ASes announcing only one prefix: 16254
Transit ASes present in the Internet Routing Table: 5816
Transit-only ASes present in the Internet Routing Table: 153
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 1027
Unregistered ASNs in the Routing Table: 278
Number of 32-bit ASNs allocated by the RIRs: 5534
Number of 32-bit ASNs visible in the Routing Table: 4305
Prefixes from 32-bit ASNs in the Routing Table: 13463
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1428
Number of addresses announced to Internet: 2657034336
Equivalent to 158 /8s, 95 /16s and 32 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163463

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 108503
Total APNIC prefixes after maximum aggregation: 33484
APNIC Deaggregation factor: 3.24
Prefixes being announced from the APNIC address blocks: 110763
Unique aggregates announced from the APNIC address blocks: 47831
APNIC Region origin ASes present in the Internet Routing Table: 4837
APNIC Prefixes per ASN: 22.90
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 820
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 796
Number of APNIC addresses announced to Internet: 727477760
Equivalent to 43 /8s, 92 /16s and 110 /24s
Percentage of available APNIC address space announced: 85.0

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 162034
Total ARIN prefixes after maximum aggregation: 81362
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162834
Unique aggregates announced from the ARIN address blocks: 75717
ARIN Region origin ASes present in the Internet Routing Table: 15874
ARIN Prefixes per ASN: 10.26
ARIN Region origin ASes announcing only one prefix: 5996
ARIN Region transit ASes present in the Internet Routing Table: 1612
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 47
Number of ARIN addresses announced to Internet: 1074041088
Equivalent to 64 /8s, 4 /16s and 145 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119040
Total RIPE prefixes after maximum aggregation: 61240
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 122762
Unique aggregates announced from the RIPE address blocks: 79199
RIPE Region origin ASes present in the Internet Routing Table: 17544
RIPE Prefixes per ASN: 7.00
RIPE Region origin ASes announcing only one prefix: 8286
RIPE Region transit ASes present in the Internet Routing Table: 2780
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2524
Number of RIPE addresses announced to Internet: 655654240
Equivalent to 39 /8s, 20 /16s and 125 /24s
Percentage of available RIPE address space announced: 95.3

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52846
Total LACNIC prefixes after maximum aggregation: 9839
LACNIC Deaggregation factor: 5.37
Prefixes being announced from the LACNIC address blocks: 58166
Unique aggregates announced from the LACNIC address blocks: 27536
LACNIC Region origin ASes present in the Internet Routing Table: 2051
LACNIC Prefixes per ASN: 28.36
LACNIC Region origin ASes announcing only one prefix: 550
LACNIC Region transit ASes present in the Internet Routing Table: 386
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 27
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 930
Number of LACNIC addresses announced to Internet: 146607616
Equivalent to 8 /8s, 189 /16s and 14 /24s
Percentage of available LACNIC address space announced: 87.4

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11780
Total AfriNIC prefixes after maximum aggregation: 2594
AfriNIC Deaggregation factor: 4.54
Prefixes being announced from the AfriNIC address blocks: 12439
Unique aggregates announced from the AfriNIC address blocks: 4236
AfriNIC Region origin ASes present in the Internet Routing Table: 697
AfriNIC Prefixes per ASN: 17.85
AfriNIC Region origin ASes announcing only one prefix: 206
AfriNIC Region transit ASes present in the Internet Routing Table: 145
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48569344
Equivalent to 2 /8s, 229 /16s and 28 /24s
Percentage of available AfriNIC address space announced: 48.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2730 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2155 11550 652 Korea Telecom (KIX)
7545 2103 319 110 TPG Internet Pty Ltd
4755 1786 391 190 TATA Communications formerly
9829 1555 1251 42 BSNL National Internet Backbo
9583 1327 103 546 Sify Limited
9498 1229 309 72 BHARTI Airtel Ltd.
7552 1174 1080 13 Vietel Corporation
24560 1098 382 167 Bharti Airtel Ltd., Telemedia
4808 1081 2022 314 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3028 3688 53 BellSouth.net Inc.
22773 2305 2939 139 Cox Communications, Inc.
1785 2146 687 132 PaeTec Communications, Inc.
18566 2051 379 178 MegaPath Corporation
20115 1680 1661 596 Charter Communications
4323 1628 1097 407 Time Warner Telecom
701 1505 11144 776 MCI Communications Services,
30036 1375 309 574 Mediacom Communications Corp
7018 1320 17764 864 AT&T WorldNet Services
6983 1296 772 581 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1873 544 16 OJSC "Vimpelcom"
34984 1367 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1215 461 911 Akamai Technologies European
31148 1011 45 19 FreeNet ISP
13188 900 99 42 TOV "Bank-Inform"
6849 860 363 39 JSC UKRTELECOM,
8551 845 370 38 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 682 798 53 Uni2 Autonomous System
35228 549 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3425 1837 90 NET Servicos de Comunicao S.A
10620 2690 435 209 Telmex Colombia S.A.
18881 1778 908 20 Global Village Telecom
7303 1739 1163 226 Telecom Argentina Stet-France
8151 1360 2855 424 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 829 94 90 Telconet S.A
6147 789 373 27 Telefonica Del Peru
6503 788 434 61 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1819 112 5 Sudanese Mobile Telephone (ZA
24863 894 338 26 LINKdotNET AS number
6713 598 653 27 Itissalat Al-MAGHRIB
8452 420 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
3741 247 921 209 The Internet Solution
36992 246 525 29 Etisalat MISR
29571 238 21 14 Ci Telecom Autonomous system
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3425 1837 90 NET Servicos de Comunicao S.A
6389 3028 3688 53 BellSouth.net Inc.
17974 2730 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2690 435 209 Telmex Colombia S.A.
22773 2305 2939 139 Cox Communications, Inc.
4766 2155 11550 652 Korea Telecom (KIX)
1785 2146 687 132 PaeTec Communications, Inc.
7545 2103 319 110 TPG Internet Pty Ltd
18566 2051 379 178 MegaPath Corporation
8402 1873 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3028 2975 BellSouth.net Inc.
17974 2730 2642 PT TELEKOMUNIKASI INDONESIA
10620 2690 2481 Telmex Colombia S.A.
22773 2305 2166 Cox Communications, Inc.
1785 2146 2014 PaeTec Communications, Inc.
7545 2103 1993 TPG Internet Pty Ltd
18566 2051 1873 MegaPath Corporation
8402 1873 1857 OJSC "Vimpelcom"
36998 1819 1814 Sudanese Mobile Telephone (ZA
18881 1778 1758 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/us/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom
62850 UNALLOCATED 8.25.147.0/24 3356 Level 3 Communicatio
62734 UNALLOCATED 8.31.128.0/24 3356 Level 3 Communicatio
62773 UNALLOCATED 8.35.180.0/22 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
62719 UNALLOCATED 12.27.130.0/24 4323 Time Warner Telecom
62861 UNALLOCATED 12.37.197.0/24 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

Complete listing at http://thyme.rand.apnic.net/us/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/us/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 /8:16 /9:11 /10:31 /11:92 /12:252
/13:468 /14:926 /15:1619 /16:12789 /17:6659 /18:11093
/19:22869 /20:32811 /21:35478 /22:49961 /23:43554 /24:249635
/25:42 /26:33 /27:17 /28:18 /29:7 /30:2
/31:0 /32:9

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2006 2051 MegaPath Corporation
36998 1786 1819 Sudanese Mobile Telephone (ZA
6389 1699 3028 BellSouth.net Inc.
8402 1575 1873 OJSC "Vimpelcom"
22773 1555 2305 Cox Communications, Inc.
30036 1216 1375 Mediacom Communications Corp
1785 1163 2146 PaeTec Communications, Inc.
11492 1148 1185 Cable One
6983 1037 1296 ITC^Deltacom
22561 977 1252 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/us/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:914 2:836 3:3 4:16 5:785 6:21
8:615 12:1883 13:3 14:875 15:9 16:3
17:19 18:19 20:34 23:618 24:1755 27:1697
31:1495 32:43 33:2 34:5 36:105 37:1910
38:918 39:3 40:182 41:3212 42:236 44:13
46:2056 47:10 49:702 50:851 52:12 54:44
55:5 56:4 57:26 58:1071 59:584 60:369
61:1472 62:1224 63:1976 64:4398 65:2331 66:4133
67:2123 68:1082 69:3292 70:905 71:509 72:2024
74:2575 75:322 76:294 77:1207 78:1024 79:674
80:1281 81:1083 82:644 83:754 84:618 85:1265
86:384 87:1014 88:521 89:1563 90:151 91:5723
92:624 93:1602 94:2095 95:1477 96:520 97:351
98:1075 99:41 100:32 101:444 103:3817 105:532
106:144 107:247 108:526 109:2034 110:959 111:1133
112:587 113:810 114:736 115:997 116:993 117:802
118:1231 119:1253 120:333 121:732 122:1790 123:1236
124:1347 125:1446 128:603 129:216 130:339 131:661
132:349 133:159 134:296 135:73 136:276 137:246
138:352 139:165 140:172 141:332 142:539 143:403
144:494 145:90 146:541 147:422 148:740 149:359
150:152 151:487 152:414 153:207 154:51 155:519
156:307 157:368 158:284 159:698 160:359 161:452
162:936 163:207 164:624 165:576 166:280 167:641
168:1035 169:119 170:1150 171:185 172:12 173:1728
174:677 175:528 176:1308 177:2584 178:1884 179:336
180:1594 181:902 182:1412 183:474 184:622 185:1129
186:2675 187:1471 188:1947 189:1244 190:7273 192:6989
193:5461 194:4026 195:3376 196:1346 197:1074 198:4727
199:5489 200:6045 201:2542 202:8823 203:8850 204:4461
205:2607 206:2811 207:2756 208:3953 209:3692 210:2940
211:1604 212:2179 213:1969 214:876 215:84 216:5422
217:1719 218:615 219:312 220:1268 221:587 222:329
223:550

End of report
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